CVE-2016-8632

NameCVE-2016-8632
DescriptionThe tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.57-2fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u3fixed
buster4.17.14-1fixed
sid4.17.17-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.8.15-1high
linuxsourcejessie(not affected)
linuxsourcewheezy(not affected)

Notes

[jessie] - linux <not-affected> (Vulnerable code introduced in 3.17-rc1)
[wheezy] - linux <not-affected> (Vulnerable code introduced in 3.17-rc1)
https://www.mail-archive.com/netdev@vger.kernel.org/msg133205.html
Fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3de81b758853f0b29c61e246679d20b513c4cfec (v4.9-rc8)

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