CVE-2017-11176

NameCVE-2017-11176
DescriptionThe mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1099-1, DSA-3927-1, DSA-3945-1
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1vulnerable
wheezy (security)3.2.93-1fixed
jessie3.16.43-2+deb8u2vulnerable
jessie (security)3.16.43-2+deb8u5fixed
stretch4.9.51-1fixed
stretch (security)4.9.30-2+deb9u5fixed
buster, sid4.13.13-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.11.11-1high
linuxsourcejessie3.16.43-2+deb8u3highDSA-3945-1
linuxsourcestretch4.9.30-2+deb9u3highDSA-3927-1
linuxsourcewheezy3.2.93-1highDLA-1099-1

Notes

Fixed by: https://git.kernel.org/linus/f991af3daabaecff34684fd51fac80319d1baad1

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