CVE-2022-2590

NameCVE-2022-2590
DescriptionA race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.260-1fixed
bullseye5.10.140-1fixed
bullseye (security)5.10.136-1fixed
bookworm, sid5.19.11-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster(not affected)
linuxsourcebullseye(not affected)
linuxsource(unstable)5.18.16-1

Notes

[bullseye] - linux <not-affected> (Vulnerable code introduced later)
[buster] - linux <not-affected> (Vulnerable code introduced later)
https://lore.kernel.org/linux-mm/20220808073232.8808-1-david@redhat.com/
https://lore.kernel.org/all/b314c287-5fc2-9f61-53f6-33282a2bed92@redhat.com/
https://www.openwall.com/lists/oss-security/2022/08/08/1

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