CVE-2013-7446

NameCVE-2013-7446
DescriptionUse-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-360-1, DSA-3426-1
NVD severitymedium (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)3.2.96-2fixed
jessie3.16.51-2fixed
jessie (security)3.16.43-2+deb8u5fixed
stretch4.9.65-3fixed
stretch (security)4.9.30-2+deb9u5fixed
buster4.13.13-1fixed
sid4.14.2-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.2.6-2medium
linuxsourcejessie3.16.7-ckt20-1+deb8u1mediumDSA-3426-1
linuxsourcewheezy3.2.73-2+deb7u1mediumDSA-3426-1
linux-2.6source(unstable)(unfixed)medium
linux-2.6sourcesqueeze2.6.32-48squeeze17mediumDLA-360-1

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1273845
https://groups.google.com/forum/#!topic/syzkaller/3twDUI4Cpm8
http://www.openwall.com/lists/oss-security/2015/11/18/9
Introduced by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ec0d215f9420564fc8286dcf93d2d068bb53a07e (v2.6.26-rc9)
Fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d267278a9ece963d77eefec61630223fce08c6c (v4.4-rc4)

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