CVE-2015-7872

NameCVE-2015-7872
DescriptionThe key_gc_unused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3396-1
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1fixed
wheezy (security)3.2.93-1fixed
jessie3.16.43-2+deb8u2fixed
jessie (security)3.16.43-2+deb8u5fixed
stretch4.9.51-1fixed
stretch (security)4.9.30-2+deb9u5fixed
buster, sid4.13.4-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.2.5-1low
linuxsourcejessie3.16.7-ckt11-1+deb8u6lowDSA-3396-1
linuxsourcewheezy3.2.68-1+deb7u6lowDSA-3396-1
linux-2.6source(unstable)(unfixed)low
linux-2.6sourcesqueeze(not affected)

Notes

[squeeze] - linux-2.6 <not-affected> (Vulnerable code not present)
https://bugzilla.redhat.com/show_bug.cgi?id=1272371
Prerequisite for Fedora patches: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94c4554ba07adbdde396748ee7ae01e86cf2d8d7
Patches from Fedora: http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?id=d76d5fe34b5c151ad83761160998b1075729b541
Upstream commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61 (v4.3-rc7)
http://www.openwall.com/lists/oss-security/2015/10/20/5

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