Sourced fromgithub.com/opencontainers/runc's releases.

runc 1.1.12 -- "Now you're thinking with Portals™!"

This is the twelfth patch release in the 1.1.z release branch of runc.It fixes a high-severity container breakout vulnerability involvingleaked file descriptors, and users are strongly encouraged to update assoon as possible.

• FixCVE-2024-21626, a container breakout attack that took advantage ofa file descriptor that was leaked internally within runc (but neverleaked to the container process).

  In addition to fixing the leak, several strict hardening measures wereadded to ensure that future internal leaks could not be used to breakout in this manner again.

  Based on our research, while no other container runtime had a similarleak, none had any of the hardening steps we've introduced (and someruntimes would not check for any file descriptors that a callingprocess may have leaked to them, allowing for container breakouts dueto basic user error).

Static Linking Notices

Therunc binary distributed with this release arestatically linked withthe followingGNU LGPL-2.1 licensed libraries, withrunc actingas a "work that uses the Library":

• libseccomp

The versions of these libraries were not modified from their upstream versions,but in order to comply with the LGPL-2.1 (§6(a)), we have attached thecomplete source code for those libraries which (when combined with the attachedrunc source code) may be used to exercise your rights under the LGPL-2.1.

However we strongly suggest that you make use of your distribution's packagesor download them from the authoritative upstream sources, especially sincethese libraries are related to the security of your containers.

Thanks to all of the contributors who made this release possible:

• Aleksa Saraicyphar@cyphar.com
• hang.jianghang.jiang@daocloud.io
• lfbzhmlifubang@acmcoder.com

Signed-off-by: Aleksa Saraicyphar@cyphar.com

... (truncated)

Sourced fromgithub.com/opencontainers/runc's changelog.

[1.1.12] - 2024-01-31

Now you're thinking with Portals™!

Security

• FixCVE-2024-21626, a container breakout attack that tookadvantage of a file descriptor that was leaked internally within runc (butnever leaked to the container process). In addition to fixing the leak,several strict hardening measures were added to ensure that future internalleaks could not be used to break out in this manner again. Based on ourresearch, while no other container runtime had a similar leak, none had anyof the hardening steps we've introduced (and some runtimes would not checkfor any file descriptors that a calling process may have leaked to them,allowing for container breakouts due to basic user error).

[1.1.11] - 2024-01-01

Happy New Year!

Fixed

• Fix several issues with userns path handling. (#4122,#4124,#4134,#4144)

Changed

• Support memory.peak and memory.swap.peak in cgroups v2.AddswapOnlyUsage inMemoryStats. This field reports swap-only usage.For cgroupv1,Usage andFailcnt are set by subtracting memory usagefrom memory+swap usage. For cgroupv2,Usage,Limit, andMaxUsageare set. (#4000,#4010,#4131)
• build(deps): bump github.com/cyphar/filepath-securejoin. (#4140)

[1.1.10] - 2023-10-31

Śruba, przykręcona we śnie, nie zmieni sytuacji, jaka panuje na jawie.

Added

• Support forhugetlb.<pagesize>.rsvd limiting and accounting. Fixes theissue of postres failing when hugepage limits are set. (#3859,#4077)

Fixed

• Fixed permissions of a newly created directories to not depend on the valueof umask in tmpcopyup feature implementation. (#3991,#4060)
• libcontainer: cgroup v1 GetStats now ignores missingkmem.limit_in_bytes(fixes the compatibility with Linux kernel 6.1+). (#4028)

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• 51d5e94 VERSION: release 1.1.12
• 2a4ed3e merge 1.1-GHSA-xr7r-f8xq-vfvv into release-1.1
• e9665f4 init: don't special-case logrus fds
• 683ad2f libcontainer: mark all non-stdio fds O_CLOEXEC before spawning init
• b6633f4 cgroup: plug leaks of /sys/fs/cgroup handle
• 284ba30 init: close internal fds before execve
• fbe3eed setns init: do explicit lookup of execve argument early
• 0994249 init: verify after chdir that cwd is inside the container
• 506552a Fix File to Close
• 099ff69 merge#4177 into opencontainers/runc:release-1.1
• Additional commits viewable incompare view

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