This is the fifth patch release in the 1.1.z series of runc, which fixes
three CVEs found in runc.
CVE-2023-25809 is a vulnerability involving rootless containers where
(under specific configurations), the container would have write access to the
/sys/fs/cgroup/user.slice/... cgroup hierarchy. No other hierarchies on the host
were affected. This vulnerability was discovered by Akihiro Suda.
GHSA-m8cg-xc2p-r3fc
CVE-2023-27561 was a regression which effectively re-introduced CVE-2019-19921.
This bug was present from v1.0.0-rc95 to v1.1.4. This regression was discovered
by Beuc. GHSA-vpvm-3wq2-2wvm
CVE-2023-28642 is a variant of CVE-2023-27561 and was fixed by the same patch.
This variant of the above vulnerability was reported by Lei Wang.
GHSA-g2j6-57v7-gm8c
In addition, the following other fixes are included in this release:
- Fix the inability to use /dev/null when inside a container
- Fix changing the ownership of host's /dev/null caused by fd redirection
- Fix rare runc exec/enter unshare error on older kernels, including CentOS < 7.7
- nsexec: Check for errors in write_log()
https://github.com/opencontainers/runc/releases/tag/v1.1.5
Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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