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Linux

CentOS Successor Rocky Linux Gets $26M to Fund Push Into Enterprise Space (zdnet.com) 27

"CIQ has landed $26 million in funding to support its plans to expand the use of Rocky Linux in the enterprise space," reports ZDNet. Last year, Red Hat decided to stop supporting CentOS 8 and shifted focus to CentOS Stream. CentOS had some huge enterprise users, among them Disney, GoDaddy, RackSpace, Toyota, and Verizon. In response, Greg Kurtzer, one of CentOS's founders, kicked off Rocky Linux in December 2020.... Kurtzer says Rocky Linux adoption has been "massive", with monthly downloads of OS images typically 250,000, reaching 750,000 in a bumper month. "Within two months we had 10,000 developer and contributors trying to be part of this project...."

The project has gained the support of Greg Kroah-Hartman, the maintainer of the main-line stable Linux kernel, to meet community demands for Rocky Linux to run on a more modern, optimized kernel, Kurtzer said. Kroah-Hartman is leading Rocky Linux special interest group (SIG) for the kernel to create an optional enhanced kernel for Rocky Linux. "He's working closely with us to make sure the kernel we use is blessed by him. He's in the loop as bugs come up and help us manage that kernel in Rocky Linux," says Kurtzer.

"Moreover, today's news follows shortly after CIQ inked a major deal with Google to help support companies looking to deploy Rocky Linux on Google's cloud infrastructure," reports VentureBeat.

Kurtzer tells the site that Rocky Linux "has been a rocket ship in terms of uptake across the enterprise and cloud."
Open Source

Fedora's Lead Speaks on the Popularity of Linux and the Importance of Open Source (techrepublic.com) 68

Fedora project leader Matthew Miller spoke to TechRepublic's Jack Wallen this week, sharing some thoughts on the future of Linux — and on open source in general: Matthew Miller: I think it's a lost cause to try to "sell" our quirky technology interest to people who don't see it already. We need to take a different approach.... I think our message, at its root, has to be around open source.... [W]ith Linux, when you install an open-source distro, you're not just part of a fan community. You're part of a colossal, global effort that makes software more available to everyone, makes that software better and better, and makes the whole world better through sharing... Just by using it you're sharing in this amazing undertaking, part of a move away from scarcity to an economy based on abundance....

Jack Wallen: What's the biggest difference in Linux today vs. Linux of 10 years ago?

Matthew Miller: I think first we have to start with just the amazing ubiquity of it. Ten years ago, it was cute to find a TV that ran Linux. Now, not only is it definitely powering your TV, you've probably got Linux running on your lightbulbs! It's everywhere. And while Linux had pushed proprietary Unix from the server room, ten years ago Windows-based servers were pushing back. The cloud changed that — now, the cloud is Linux, almost completely. (Anything that isn't is a legacy app that it was too much trouble to port!) From tiny devices to the most powerful mainframes and supercomputers: Linux, Linux, Linux....

Jack Wallen: If Linux has an Achilles' heel, what is it?

Matthew Miller: Linux and the whole free and open-source software movement grew up with the rise of the internet as an open communication platform. We absolutely need that to continue in order to realize our vision, and I don't think we can take it for granted.

That's more general than an Achilles' heel, though, so right now let me highlight one thing that I think is troubling: Chrome becoming the dominant browser to the point where it's often the only way to make sites work. Chromium (the associated upstream project) is open source, but isn't really run as a community project, and, pointedly, very very few people run Chromium itself. I'd love to see that change, but I'd also like to see Firefox regain a meaningful presence.

Miller also said Fedora's next release is focused on simplicity. ("When the OS gets in the way, it drops from the conversation I want to have about big ideas to ... well, the boring technical details that people never want to deal with")

And he also shared his thoughts on what Linux needs most. "What I'd really like to see more of are more non-technical contributors. I mean, yes, we can always benefit from more packagers and coders and engineers, but I think what we really need desperately are writers, designers, artists, videographers, communicators, organizers and planners. I don't think big companies are likely to provide those things, at least, not for the parts of the Linux world which aren't their products."

"We need people who think the whole grand project I've been talking about is important, and who have the skills and interests to help make it real."
Open Source

Arch Linux Turns 20 (neowin.net) 29

"Arch Linux, the rolling Linux distribution that powers Valve's Steam Deck is now 20 years old," reports Neowin.

Slashdot reader segaboy81 writes that "What's cool to see here is that everything changed behind the scenes, but on the surface, things are the same." From the article: Announced on March 11th, 2002, and codenamed Homer, version 0.1 was released to minor fanfare. The release notes were a far cry from today's, essentially announcing it had broken ground and the foundation was going in, as it were.

Homer's release notes:

I've finally got a bootable iso image on the ftp site. The bad news is that you don't get a pretty interactive installer. But if you wanted one of those, you would have gone with RedHat, right? ;)

I'll try to get the docs up for ABS (Arch Build System) which, IMHO, is one of the best advantages of Arch. With ABS, you can easily create new packages, and it's trivial to rebuild existing packages with your own customizations....


It shipped with Linux kernel 2.4.18 which many of the Linux old-timers (myself included) will remember was right before we started to get nice things like auto-mounting USB drives in kernel 2.6. XFree86 4.2.0 was also in stow, which is what we now call Xorg. If you wanted to build software, you had to use an absolutely ancient gcc toolchain (2.95.3). Web browsing was covered by the ghost of Netscape Navigator, Mozilla 0.9.9. Heady days, these were!

Red Hat Software

Red Hat Is Discontinuing Sales and Services In Russia and Belarus (newsobserver.com) 49

Red Hat, the Raleigh-based open-source software company, said Tuesday it is halting all sales and services to companies in Russia and Belarus -- a response to the Russian invasion of Ukraine that has put Red Hat employees in harm's way. Raleigh News & Observer reports: Paul Cormier, Red Hat's chief executive officer, announced the decision in an email to employees, saying: "As a company, we stand in unity with everyone affected by the violence and condemn the Russian military's invasion of Ukraine." Red Hat's announcement comes a day after its parent company, IBM, which also has a large presence in the Triangle, suspended all business operations in Russia.

"While relevant sanctions must guide many of our actions, we've taken additional measures as a company," Cormier wrote. "Effective immediately, Red Hat is discontinuing sales and services in Russia and Belarus (for both organizations located in or headquartered in Russia or Belarus)." Red Hat said it has approximately two dozen employees in Ukraine, which has become an important tech hub in Eastern Europe in recent years. It is home to tens of thousands of contractors and employees for U.S. firms. In his email, Cormier said that Red Hat has helped dozens of employees and family members in Ukraine relocate to safer locations. Many of them have gone to neighboring Poland, he noted. [...] However, Ukraine has barred men ages 18 to 60 from leaving the country, meaning many of Red Hat's employees can't be relocated from the country. We "continue to help those who remain in the country in any way possible," Cormier wrote.

Security

Major Linux PolicyKit Security Vulnerability Uncovered: Pwnkit (zdnet.com) 179

An anonymous reader quotes a report from ZDNet: [S]ecurity company Qualys has uncovered a truly dangerous memory corruption vulnerability in polkit's pkexec, CVE-2021-4034. Polkit, formerly known as PolicyKit, is a systemd SUID-root program. It's installed by default in every major Linux distribution. This vulnerability is easy to exploit. And, with it, any ordinary user can gain full root privileges on a vulnerable computer by exploiting this vulnerability in its default configuration. As Qualsys wrote in its brief description of the problem: "This vulnerability is an attacker's dream come true." Why is it so bad? Let us count the ways:

- Pkexec is installed by default on all major Linux distributions.
- Qualsys has exploited Ubuntu, Debian, Fedora, and CentOS in their tests, and they're sure other distributions are also exploitable.
- Pkexec has been vulnerable since its creation in May 2009 (commit c8c3d83, "Add a pkexec(1) command").
- An unprivileged local user can exploit this vulnerability to get full root privileges.
- Although this vulnerability is technically a memory corruption, it is exploitable instantly and reliably in an architecture-independent way.
- And, last but not least, it's exploitable even if the polkit daemon itself is not running.

Red Hat rates the PwnKit as having a Common Vulnerability Scoring System (CVSS) score of 7.8. This is high. [...] This vulnerability, which has been hiding in plain sight for 12+ years, is a problem with how pkexec reads environmental variables. The short version, according to Qualsys, is: "If our PATH is "PATH=name=.", and if the directory "name=." exists and contains an executable file named "value", then a pointer to the string "name=./value" is written out-of-bounds to envp[0]." While Qualsys won't be releasing a demonstration exploit, the company is sure it won't take long for exploits to be available. Frankly, it's not that hard to create a PwnKit attack.
It's recommended that you obtain and apply a patch ASAP to protect yourself from this vulnerability.

"If no patches are available for your operating system, you can remove the SUID-bit from pkexec as a temporary mitigation," adds ZDNet. "For example, this root-powered shell command will stop attacks: # chmod 0755 /usr/bin/pkexec."
Microsoft

The Best Part of Windows 11 Is Its Linux, Argues Ars Technica (arstechnica.com) 148

The best part of Windows 11 is Linux, argues Ars Technica: For years now, Windows 10's Windows Subsystem for Linux has been making life easier for developers, sysadmins, and hobbyists who have one foot in the Windows world and one foot in the Linux world. But WSL, handy as it is, has been hobbled by several things it could not do. Installing WSL has never been as easy as it should be — and getting graphical apps to work has historically been possible but also a pain in the butt that required some fairly obscure third-party software. Windows 11 finally fixes both of those problems. The Windows Subsystem for Linux isn't perfect on Windows 11, but it's a huge improvement over what came before.

Microsoft has traditionally made installing WSL more of a hassle than it should be, but the company finally got the process right in Windows 10 build 2004. Just open an elevated Command prompt (start --> type cmd --> click Run as Administrator), type wsl --install at the prompt, and you're good to go. Windows 11, thankfully, carries this process forward unchanged. A simple wsl --install with no further arguments gets you Hyper-V and the other underpinnings of WSL, along with the current version of Ubuntu. If you aren't an Ubuntu fan, you can see what other easily installable distributions are available with the command wsl --list --online. If you decide you'd prefer a different distro, you can install it instead with — for example — wsl --install -d openSUSE-42. If you're not sure which distribution you prefer, don't fret. You can install as many as you like, simply by repeating wsl --list --online to enumerate your options and wsl --install -d distroname to install whichever you like. Installing a second distribution doesn't uninstall the first; it creates a separate environment, independent of any others. You can run as many of these installed environments as you like simultaneously, without fear of one messing up another.

In addition to easy installation, WSL on Windows 11 brings support for both graphics and audio in WSL apps. This isn't exactly a first — Microsoft debuted WSLg in April, with Windows 10 Insider Build 21364. But Windows 11 is the first production Windows build with WSLg support. If this is your first time hearing of WSLg, the short version is simple: you can install GUI apps — for example, Firefox — from your Ubuntu (or other distro) command line, and they'll work as expected, including sound. When I installed WSLg on Windows 11 on the Framework laptop, running firefox from the Ubuntu terminal popped up the iconic browser automatically. Heading to YouTube in it worked perfectly, too, with neither frame drops in the video nor glitches in the audio....

[T]here is one obvious "killer app" for WSLg that has us excited — and that's virt-manager, the RedHat-originated virtualization management tool. virt-manager is a simple tool that streamlines the creation, management, and operation of virtual machines using the Linux Kernel Virtual Machine... virt-manager never got a Windows port and seems unlikely to. But it runs under WSLg like a champ.

They reported a few problems, like when running GNOME's Software Center app (and the GNOME shell desktop environment).

But "If you're already a Windows Subsystem for Linux (WSL) user, Windows 11 offers an enormously improved experience compared to what you're accustomed to from Windows 10. It installs more easily, makes more functionality available, and offers better desktop integration than older workarounds such as running MobaXTerm's X11 server."
Chrome

Is 2021 The Year of the Linux Desktop? (pcmag.com) 192

"2021 Is the Year of Linux on the Desktop," writes PC Magazine. "No, really..." Walk into any school now, and you'll see millions of Linux machines. They're called Chromebooks. For a free project launched 30 years ago today by one man in his spare time, it's an amazing feat.... Linux found its real niche — not as a political statement about "free software," but as a practical way to enable capable, low-cost machines for millions...

Chrome OS and Android are both based on the Linux kernel. They don't have the extra GNU software that distributions like Ubuntu have, but they're descended from Linus Torvalds' original work. Chromebooks are the fastest growing segment of the traditional PC market, according to Canalys. IDC points out that Canalys' estimates of 12 million Chromebooks shipped in Q1 2021 are only a fraction of the 63 million notebooks sold that quarter, but once again, they're where the growth is. Much of that is driven by schools, where Chromebooks dominate now. Schoolkids don't generally need a million apps' worth of generic computing power. They need inexpensive, rugged ways to log into Google Classroom. Linux came to the rescue, enabling cheap, light, easy-to-manage PCs that don't have the Swiss Army Knife cruft of Windows or the premium price of Macs...

One great thing about open-source hacker projects is that they can be taken in unexpected directions. Linux isn't controlled, so it can adapt, Darwinian-style. It was a little scurrying mammal in the time of the dinosaurs, and then the mobile-computing asteroid hit. Linux could evolve. Windows couldn't. When you're building something that fits in your hand and has to sip battery, you can't just keep throwing processors and storage at it. Microsoft had a tough time adapting its monstrous megakernel OS to the new, tiny world. But *nix platforms thrive there: Android (based on Linux) and iOS.

"Android and Chrome water down the Linux philosophy," the article argues, "but they are Linux..."

Does this make any long-time geeks feel vindicated? In the original submission wiredog (Slashdot reader #43,288) looks back to 1995, remembering that "my first Linux was RedHat 2.0 in the beige box, running the 0.95(?) kernel and the F Virtual Window Manager...

"It came with 2 books, a CD, and a boot floppy disk."
Bug

Linux Glibc Security Fix Created a Nastier Linux Bug (zdnet.com) 74

A fix that was made in early June to the GNU C Library (glibc) introduced a new and nastier problem. Steven J. Vaughan-Nichols writes via ZDNet: The first problem wasn't that bad. As Siddhesh Poyarekar, a Red Hat principal software engineer wrote, "In order to mount a minimal attack using this flaw, an attacker needs many pre-requisites to be able to even crash a program using this mq_notify bug." Still, it needed patching and so it was fixed. Alas, the fix contained an even nastier bug. While checking the patch, Nikita Popov, a member of the CloudLinux TuxCare Team, found the problem. It turns out that it is possible to cause a situation where a segmentation fault could be triggered within the library. This can lead to any application using the library crashing. This, of course, would cause a Denial-of-Service (DoS) issue. This problem, unlike the earlier one, would be much easier to trigger. Whoops.

Red Hat gives the problem in its Common Vulnerability Scoring System (CVSS) a score of 7.5, which is "high." An attack using it would be easy to build and requires no privileges to be made. In short, it's bad news. Popov himself thinks "every Linux application including interpreters of other languages (python, PHP) is linked with glibc. It's the second important thing after the kernel itself, so the impact is quite high." [...] The good news is both the vulnerability and code fix have been submitted to the glibc development team. It has already been incorporated into upstream glibc.

In addition, a new test has been submitted to glibc's automated test suite to pick up this situation and prevent it from happening in the future. The bottom line is sometimes changed in unrelated code paths can lead to behaviors changing elsewhere without the programmer realizing what's going on. This test will catch this situation. The Linux distributors are still working out the best way to deploy the fix. In the meantime, if you want to be extra careful -- and I think you should be -- you should upgrade to the newest stable version of glibc 2.34 or higher.

Bug

Nasty Linux Systemd Security Bug Revealed (zdnet.com) 203

Qualys has discovered a new systemd security bug that enables any unprivileged user to cause a denial of service via a kernel panic. Slashdot reader inode_buddha shares the news via ZDNet's Steven J. Vaughan-Nichols: As Bharat Jogi, Qualys's senior manager of Vulnerabilities and Signatures, wrote, "Given the breadth of the attack surface for this vulnerability, Qualys recommends users apply patches for this vulnerability immediately." You can say that again. Systemd is used in almost all modern Linux distributions. This particular security hole arrived in the systemd code in April 2015.

It works by enabling attackers to misuse the alloca() function in a way that would result in memory corruption. This, in turn, allows a hacker to crash systemd and hence the entire operating system. Practically speaking, this can be done by a local attacker mounting a filesystem on a very long path. This causes too much memory space to be used in the systemd stack, which results in a system crash. That's the bad news. The good news is that Red Hat Product Security and systemd's developers have immediately patched the hole.

Open Source

Rocky Linux 8.4 Achieves First General Availability Release, Proves Popular (rockylinux.org) 40

"When Red Hat killed off CentOS Linux in a highly controversial December 2020 announcement, Gregory Kurtzer immediately announced his intention to recreate CentOS with a new distribution named after his deceased mentor," Ars Technica reported in February.

And this week, "The Rocky Enterprise Software Foundation has announced general availability (GA) of Rocky Linux 8.4," reports ZDNet. "It's an important milestone because it's the first Rocky Linux general availability release ever." Huge companies, including Disney, GoDaddy, Rackspace, Toyota and Verizon, relied on CentOS, and they were reportedly not happy about RedHat's decision... It turns out that Kurtzer's decision has been a popular one. Besides quickly building up an army of hundreds of contributors for the project, Rocky Linux 8.4 - which follows the May 18 release of Red Hat's RHEL 8.4 - was downloaded at least 10,000 times within half a day of its release... "If we extrapolate the count to include our other mirrors we are probably at least 3-4x that (if not even way more)!" boasts Kurtzer in a LinkedIn post. "Lots of reports coming in of people and organizations already replacing their CentOS systems (and even other Linux distributions) with Rocky. The media is flying off the hook and business analysts also validating to me personally that Rocky Linux might soon be the most utilized Linux operating system used in enterprise and cloud!"

Rocky Linux 8.4 took seven months for the newly formed community to release, and is available for x86_64 and ARM64 (aarch64) architecture hardware in various ISOs.

"Sufficient testing has been performed such that we have confidence in its stability for production systems," explains a blog post at RockyLinux.org, adding that free community support is available through the forums as well as live chat avaiable through IRC and Rocky Linux Mattermost. "Paid commercial support is currently available through CIQ..."

"Corporations come and go, their interests as transient as they are self-serving. But a community persists, and that's who we dedicate Rocky Linux to: you." Rocky is more than the next free and open, community enterprise operating system. It's a community. A commitment to an ideal bigger than the sum of its parts, and a promise that our principles — embedded even within our repositories and ISOs — are immutable...

This is just the beginning, and the Rocky Enterprise Software Foundation is more than just Rocky Linux — it's a home for those that believe that open source isn't just a switch that can be toggled at will, and that projects that many rely on not be subject to the whims of a few. To this point, you can easily find all of our sources, our build infrastructure, Git repositories, and everything else anyone would need to fork our work and ensure that it continues if need be...

When we announced our release candidate, we asked you to come build the next free, open, community enterprise operating system with us. Now we're asking you for more: join us as we build our community.

They also thanked 11 sponsors and partners for contributing "resources, financial backing, software, and infrastructure."
Bug

Patch Released for 7-Year-Old Privilege Escalation Bug In Linux Service Polkit (github.blog) 39

Long-time Slashdot reader wildstoo writes: In a blog post on Thursday, GitHub security researcher Kevin Backhouse announced that Polkit, a Linux system service included in several modern Linux distros that provides an organized way for non-privileged processes to communicate with privileged ones, has been harbouring a major security bug for seven years.

The bug, assigned (CVE-2021-3560) allows a non-privileged user to gain administrative shell access with a handful of standard command line tools. The bug was fixed on June 3, 2021 in a coordinated disclosure.

"It's used by systemd," GitHub's blog post points out, "so any Linux distribution that uses systemd also uses polkit..."

"It's very simple and quick to exploit, so it's important that you update your Linux installations as soon as possible. Any system that has polkit version 0.113 (or later) installed is vulnerable. That includes popular distributions such as RHEL 8 and Ubuntu 20.04."
GNOME

Why is F34 the Most Popular Fedora Linux in Years? (zdnet.com) 125

This week ZDNet dedicated an article to "the most popular Fedora Linux in years." Red Hat's community Linux distribution Fedora has always been popular with open-source and Linux developers, but this latest release, Fedora 34 seems to be something special. As Matthew Miller, Fedora Project Leader, tweeted, "The beta for F34 was one of the most popular ever, with twice as many systems showing up in my stats as typical."

Why? Nick Gerace, a Rancher software engineer, thinks it's because "I've never seen the project in a better state, and I think GNOME 40 is a large motivator as well. Probably a combination of each, from anecdotal evidence." He's onto something. When Canonical released Ubuntu 21.04 a few days earlier, their developers opted to stay with the tried and true GNOME 39 desktop. Fedora's people decided to go with GNOME 40 for their default desktop even though it's a radical update to the GNOME interface. Besides boasting a new look, GNOME 40 is based on the new GTK 4.0 graphical toolkit. Under the pretty new exterior, this update also fixed numerous issues and smoothed out many rough spots.

If you'd rather have another desktop, you can also get Fedora 34 with the newest KDE Plasma Desktop, Xfce 4.16, Cinnamon, etc. You name your favorite Linux desktop interface, Fedora will almost certainly deliver it to you... Another feature I like is that, since Fedora 33, the default file system is Btrfs. I find it faster and more responsive than ext4, perhaps the most popular Linux desktop file system. What's different this time around is that it now defaults to using Btrfs transparent compression. Besides saving significant storage space — typically from 20 to 40% — Red Hat also claims this increases the lifespan of SSDs and other flash media.

Although the article does point out that most users will never reach the end of that SSD lifespan (approximately ten years of normal use), it suggests that "developers, who might for example compile Linux kernels every day, might reach that point before a PC's usual end of useful life."

In a possibly related note, Linus Torvalds said this week in a new interview that "I use Fedora on all my machines, not because it's necessarily 'preferred', but because it's what I'm used to. I don't care deeply about the distribution — to me it's mainly a way to get Linux installed on a machine and get all my tools set up, so that I can then replace the kernel and work on just that."
Operating Systems

AlmaLinux Released As a Stable RHEL Clone For Those Who Liked CentOS (zdnet.com) 43

Long-time Slashdot reader xiando quotes the backstory from LinuxReviews.org: CentOS used to be the go-to alternative for those who wanted to use Red Hat Enterprise Linux (RHEL) without having to pay RedHat to use it. It was a almost 1:1 clone until RedHat took control of it and turned it into what is now a RHEL beta-version, not a stable RHEL release without the branding. Almalinux is one of several projects that have made their own RHEL forks in response. The first Almalinux version is now released.
ZDNet notes that CentOS co-founder Gregory Kurtzer has announced his own RHEL clone and CentOS replacement named Rocky Linux. But they offer this report on AlmaLinux: CloudLinux — which was founded in 2009 to provide a customized, high-performance, lightweight RHEL/CentOS server clone for multitenancy web and server hosting companies — came ready to deliver. The new free AlmaLinux is now stable and ready for production workloads. The company also announced the formation of a non-profit organization: AlmaLinux Open Source Foundation. This group will take over managing the AlmaLinux project going forward. CloudLinux has committed a $1 million annual endowment to support the project.

Jack Aboutboul, former Red Hat and Fedora engineer and architect, will be AlmaLinux's community manager. Altogether, Aboutboul brings over 20 years of experience in open-source communities as a participant, manager, and evangelist... "In an effort to fill the void soon to be left by the demise of CentOS as a stable release, AlmaLinux has been developed in close collaboration with the Linux community," said Aboutaboul in a statement. "These efforts resulted in a production-ready alternative to CentOS that is supported by community members...."

In talking with CentOS business users, who deployed CentOS on web and host servers, I found many of them to be very hopeful about AlmaLinux. One from a mid-Atlantic-based Linux hosting company said, "What we want is a stable Linux that our customers can rely on from year to year. Since CentOS Stream can't deliver that, we think — hope — that AlmaLinux can do it for us and our users instead...."

This first release of AlmaLinux is a one-to-one binary compatible fork of RHEL 8.3. Looking ahead, AlmaLinux will seek to keep step-in-step with future RHEL releases... The GitHub page has already been published and the completed source code has been published in the main download repository. The CloudLinux engineering team has also published FAQ on AlmaLinux Wiki.

"The sudden shift in direction for CentOS that was announced in December created a big void for millions of CentOS users," said Simon Phipps, open source advocate and a former president of the Open Source Initiative who is on the governing board of the AlmaLinux project. In a statement, Phipps said that "As a drop-in open-source replacement, AlmaLinux provides those users with continuity and new opportunity to be part of a vibrant community built around creating and supporting this new Linux distribution under non-profit governance.

"I give a lot of credit to CloudLinux for stepping in to offer CentOS users a lifeline to continue with AlmaLinux."
Bug

Three Flaws in the Linux Kernel Since 2006 Could Grant Root Privileges (scmagazine.com) 94

"Three recently unearthed vulnerabilities in the Linux kernel, located in the iSCSI module used for accessing shared data storage facilities, could allow root privileges to anyone with a user account," reports SC Media: "If you already had execution on a box, either because you have a user account on the machine, or you've compromised some service that doesn't have repaired permissions, you can do whatever you want basically," said Adam Nichols, principal of the Software Security practice at GRIMM. While the vulnerabilities "are in code that is not remotely accessible, so this isn't like a remote exploit," said Nichols, they are still troublesome. They take "any existing threat that might be there. It just makes it that much worse," he explained. "And if you have users on the system that you don't really trust with root access it, it breaks them as well."

Referring to the theory that 'many eyes make all bugs shallow,' Linux code "is not getting many eyes or the eyes are looking at it and saying that seems fine," said Nichols. "But, [the bugs] have been in there since the code was first written, and they haven't really changed over the last 15 years...." That the flaws slipped detection for so long has a lot to do with the sprawl of the the Linux kernel. It "has gotten so big" and "there's so much code there," said Nichols. "The real strategy is make sure you're loading as little code as possible."

The bugs are in all Linux distributions, Nichols said, although the kernel driver is not loaded by default. Whether a normal user can load the vulnerable kernel module varies. They can, for instance, on all Red Hat based distros that GRIMM tested, he said. "Even though it's not loaded by default, you can get it loaded and then of course you can exploit it without any trouble...."

The bugs have been patched in the following kernel releases: 5.11.4, 5.10.21, 5.4.103, 4.19.179, 4.14.224, 4.9.260, and 4.4.260. All older kernels are end-of- life and will not receive patches.

Red Hat Software

Red Hat Introduces Free RHEL for Open-Source Organizations (zdnet.com) 83

ZDNet brings an update about the future of Red Hat Enterprise Linux: When Red Hat, CentOS's Linux parent company, announced it was "shifting focus from CentOS Linux, the rebuild of Red Hat Enterprise Linux (RHEL), to CentOS Stream," CentOS users were not happy. Now, in an effort to mollify them and to keep its promise to open-source organizations, Red Hat is introducing a new, free RHEL for Open Source Infrastructure. If your non-profit organization, project, standard body, or foundation is "engaged with open source," you can get a free RHEL subscription via this program. Earlier this year, Red Hat introduced no-cost RHEL for small production workloads and for customer development teams...

Jason Brooks, a Red Hat Open Source Program Office Manager explained:

Supporting the open-source software ecosystem is a core objective for Red Hat... We know that we are part of a larger, interdependent ecosystem that we benefit from and which we do our best to foster and support. This support comes in many forms, but often includes helping open source software projects, foundations, and standards bodies access enterprise technologies for development and testing.

We frequently provide no-cost access to RHEL to these groups, but the process isn't as formalized, consistent, accessible, or transparent as we'd like it to be. With the announcement that we will be shifting our resources to CentOS Stream at the end of 2021, we want to make sure that those organizations engaged with open source have access to RHEL as they build and test the future of open-source software...


The GNOME Foundation's executive director Neil McGovern, said:

As a non-profit, we rely on donations to help us achieve our goal of a world where everyone is empowered by technology they can trust. RHEL subscriptions are an essential part of this. With full operating system management and security updates, we can concentrate on the services we provide to GNOME users and developers without having to worry about the underlying systems. Red Hat has generously provided these services to GNOME at zero cost for years, and we look forward to continuing our relationship for a long time to come.

GNOME is also the default desktop in RHEL Workstation.

Open Source

While Recreating CentOS as 'Rocky Linux', Gregory Kurtzer Also Launches a Sponsoring Startup (arstechnica.com) 63

"Gregory Kurtzer, co-founder of the now-defunct CentOS Linux distribution, has founded a new startup company called Ctrl IQ, which will serve in part as a sponsoring company for the upcoming Rocky Linux distribution," Ars Technica reports: Kurtzer co-founded CentOS Linux in 2004 with mentor Rocky McGaugh, and it operated independently for 10 years until being acquired by Red Hat in 2014. When Red Hat killed off CentOS Linux in a highly controversial December 2020 announcement, Kurtzer immediately announced his intention to recreate CentOS with a new distribution named after his deceased mentor.

The Rocky Linux concept got immediate, positive community reaction — but there's an awful lot of work and expense that goes into creating and maintaining a Linux distribution. The CentOS Linux project itself made that clear when it went for the Red Hat acquisition in 2014; without its own source of funding, the odds of Rocky Linux becoming a complete 1:1 replacement — serving the same massive volume of users that CentOS did — seemed dicey at best.

In a statement Ctrl IQ notes the Rocky Linux community was already "in the thousands of people driving the foundation of the organization..."

And as for Gregory Kurtzer, he was "originally basing Ctrl IQ's stack on CentOS, but he needed to pivot, as did most of the community to something else. Due to the alignment, Greg chose Rocky, and has been asked to help support it." Ars Technica adds: The company describes itself in its announcement as the suppliers of a "full technology stack integrating key capabilities of enterprise, hyper-scale, cloud and high-performance computing..."

Wading through the buzzword bingo, Ctrl IQ's real business seems to be in supplying relatively turn-key infrastructure for high-performance computing (HPC) workloads, capable of running distributed across multiple sites and/or cloud providers... Not all of Ctrl IQ's offerings are theoretical. Warewulf, also founded by Kurtzer, is currently developed and maintained by the US Department of Energy. Anyone can freely download and use Warewulf, but it's not difficult to imagine value added in consulting with one of its founders...

Ctrl IQ is one of three Tier 1 sponsors identified by the Rocky Linux project, along with Amazon Web Services (which provides core build infrastructure) and Mattermost, which is providing enterprise collaboration services...

Rocky Linux is generally expected to be widely available in Q2 2021, with a first-release candidate build expected on March 31.

Bug

How DNSpooq Attacks Could Poison DNS Cache Records (zdnet.com) 9

Earlier this week security experts disclosed details on seven vulnerabilities impacting Dnsmasq, "a popular DNS software package that is commonly deployed in networking equipment, such as routers and access points," reports ZDNet. "The vulnerabilities tracked as DNSpooq, impact Dnsmasq, a DNS forwarding client for *NIX-based operating systems."

Slashdot reader Joe2020 shared Help Net Security's quote from Shlomi Oberman, CEO and researcher at JSOF. "Some of the bigger users of Dnsmasq are Android/Google, Comcast, Cisco, Red Hat, Netgear, and Ubiquiti, but there are many more. All major Linux distributions offer Dnsmasq as a package, but some use it more than others, e.g., in OpenWRT it is used a lot, Red Hat use it as part of their virtualization platforms, Google uses it for Android hotspots (and maybe other things), while, for example Ubuntu just has it as an optional package."

More from ZDNet: Dnsmasq is usually included inside the firmware of various networking devices to provide DNS forwarding capabilities by taking DNS requests made by local users, forwarding the request to an upstream DNS server, and then caching the results once they arrive, making the same results readily available for other clients without needing to make a new DNS query upstream. While their role seems banal and insignificant, they play a crucial role in accelerating internet speeds by avoiding recursive traffic...

Today, the DNSpooq software has made its way in millions of devices sold worldwide [including] all sorts of networking gear like routers, access points, firewalls, and VPNs from companies like ZTE, Aruba, Redhat, Belden, Ubiquiti, D-Link, Huawei, Linksys, Zyxel, Juniper, Netgear, HPE, IBM, Siemens, Xiaomi, and others. The DNSpooq vulnerabilities, disclosed today by security experts from JSOF, are dangerous because they can be combined to poison DNS cache entries recorded by Dnsmasq servers. Poisoning DNS cache records is a big problem for network administrators because it allows attackers to redirect users to clones of legitimate websites...

In total, seven DNSpooq vulnerabilities have been disclosed today. Four are buffer overflows in the Dnsmasq code that can lead to remote code execution scenarios, while the other three bugs allow DNS cache poisoning. On their own, the danger from each is limited, but researchers argue they can be combined to attack any device with older versions of the Dnsmasq software...

The JSOF exec told ZDNet that his company has worked with both the Dnsmasq project author and multiple industry partners to make sure patches were made available to device vendors by Tuesday's public disclosure.

Red Hat Software

CentOS Is Gone -- But RHEL Is Now Free For Up To 16 Production Servers (arstechnica.com) 129

An anonymous reader quotes a report from Ars Technica: Last month, Red Hat caused a lot of consternation in the enthusiast and small business Linux world when it announced the discontinuation of CentOS Linux. Long-standing tradition -- and ambiguity in Red Hat's posted terms -- led users to believe that CentOS 8 would be available until 2029, just like the RHEL 8 it was based on. Red Hat's early termination of CentOS 8 in 2021 cut eight of those 10 years away, leaving thousands of users stranded. Red Hat's December announcement of CentOS Stream -- which it initially billed as a "replacement" for CentOS Linux -- left many users confused about its role in the updated Red Hat ecosystem.

As of February 1, 2021, Red Hat will make RHEL available at no cost for small-production workloads -- with "small" defined as 16 systems or fewer. This access to no-cost production RHEL is by way of the newly expanded Red Hat Developer Subscription program, and it comes with no strings -- in Red Hat's words, "this isn't a sales program, and no sales representative will follow up." Red Hat is also expanding the availability of developer subscriptions to teams, as well as individual users. Moving forward, subscribing RHEL customers can add entire dev teams to the developer subscription program at no cost. This allows the entire team to use Red Hat Cloud Access for simplified deployment and maintenance of RHEL on well-known cloud providers, including AWS, Google Cloud, and Microsoft Azure.

Red Hat Software

CentOS 8 Ending Next Year To Focus Shift On CentOS Stream (cyberciti.biz) 136

Well here is a surprise for those that have long used CentOS as the community-supported rebuild of Red Hat Enterprise Linux... CentOS 8 will end in 2021 and moving forward CentOS 7 will remain supported until the end of its lifecycle but CentOS Stream will be the focus as the future upstream of RHEL. From a report: For those relying on CentOS 8 to enjoy the reliability and features of Red Hat Enterprise Linux 8 but without the licensing costs, etc, that will end in 2021. At the end of 2021, CentOS 8 will no longer be maintained but CentOS 7 will stick around in a supported maintenance state until 2024. The CentOS Project will be focused moving forward just on CentOS Stream as the upstream/development branch of Red Hat Enterprise Linux. CentOS 8 users are encouraged to begin transitioning to CentOS Stream 8. The CentOS Project announced this shift in focus today via the CentOS Blog. Red Hat's announcement meanwhile is promoting the change as beneficial to CentOS Stream.
Software

Tech Organizations Back 'Inclusive Naming Initiative' (theregister.com) 264

New submitter LeeLynx shares a report from The Register: A new group called the "Inclusive Naming Initiative" has revealed its existence and mission "to help companies and projects remove all harmful and unclear language of any kind and replace it with an agreed-upon set of neutral terms." Akamai, Cisco, the Cloud Native Computing Foundation, IBM, the Linux Foundation, Red Hat, and VMware are all participants. The group has already offered a Word replacement list that suggests alternatives to the terms whitelist, blacklist, slave, and master. There's also a framework for evaluating harmful language that offers guidance on how to make changes.

Red Hat's post announcing its participation in the Initiative links to a dashboard listing all instances of terms it wants changed and reports over 330,000 uses of "Master" and 105,000 uses of "Slave," plus tens of thousands and whitelists and blacklists. Changing them all will be a big job, wrote Red Hat's senior veep and CTO Chris Wright. "On a technical level, change has to be made in hundreds of discrete communities, representing thousands of different projects across as many code repositories," Wright wrote. "Care has to be taken to prevent application or API breakage, maintain backward compatibility, and communicate the changes to users and customers." The Initiative nonetheless hopes to move quickly, with its roadmap calling for best practices to be defined during Q1 2021, case studies to be available in Q3 2021 and a certification program delivered in Q4 2021.

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