CVE-2016-4805

NameCVE-2016-4805
DescriptionUse-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3607-1
NVD severityhigh (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1vulnerable
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)4.5.2-1high
linuxsourcejessie3.16.7-ckt25-2+deb8u2highDSA-3607-1
linuxsourcewheezy3.2.81-1high

Notes

Fixed by: https://git.kernel.org/linus/1f461dcdd296eecedaffffc6bae2bfa90bd7eb89 (v4.6-rc1)
Introduced by: https://git.kernel.org/linus/273ec51dd7ceaa76e038875d85061ec856d8905e (v2.6.30)

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