CVE-2016-0728

NameCVE-2016-0728
DescriptionThe join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) 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-3448-1
NVD severityhigh (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)3.2.84-1fixed
jessie3.16.39-1fixed
jessie (security)3.16.36-1+deb8u2fixed
stretch4.8.15-2fixed
sid4.9.2-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.3.3-6high
linuxsourcejessie3.16.7-ckt20-1+deb8u3highDSA-3448-1
linuxsourcewheezy(not affected)
linux-2.6source(unstable)(not affected)

Notes

[wheezy] - linux <not-affected> (Introduced in v3.8-rc1)
- linux-2.6 <not-affected> (Introduced in v3.8-rc1)
Upstream commit: https://git.kernel.org/linus/23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
Introduced in https://git.kernel.org/linus/3a50597de8635cd05133bd12c95681c82fe7b878 (v3.8-rc1)
http://perception-point.io/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/

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