CVE-2015-6252

NameCVE-2015-6252
DescriptionThe vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3364-1
NVD severitylow (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)3.2.93-1fixed
jessie3.16.43-2+deb8u2fixed
jessie (security)3.16.43-2+deb8u5fixed
stretch4.9.51-1fixed
stretch (security)4.9.30-2+deb9u5fixed
buster, sid4.13.4-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.1.5-1low
linuxsourcejessie3.16.7-ckt11-1+deb8u4lowDSA-3364-1
linuxsourcewheezy3.2.68-1+deb7u4lowDSA-3364-1
linux-2.6source(unstable)(unfixed)low
linux-2.6sourcesqueeze(not affected)

Notes

[squeeze] - linux-2.6 <not-affected> (Vulnerable code not present)
https://lkml.org/lkml/2015/8/10/375
Fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5 (v4.2-rc5)

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