CVE-2014-8559

NameCVE-2014-8559
DescriptionThe d_walk function in fs/dcache.c in the Linux kernel through 3.17.2 does not properly maintain the semantics of rename_lock, which allows local users to cause a denial of service (deadlock and system hang) via a crafted application.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3170-1
NVD severitymedium (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)3.16.7-ckt4-1medium
linuxsourcewheezy3.2.65-1+deb7u2mediumDSA-3170-1
linux-2.6source(unstable)(not affected)

Notes

- linux-2.6 <not-affected> (Introduced in 2.6.38)
References in http://www.openwall.com/lists/oss-security/2014/10/30/7
Upstream fix: https://git.kernel.org/linus/ca5358ef75fc69fee5322a38a340f5739d997c10 (v3.19-rc1)
Upstream fix: https://git.kernel.org/linus/946e51f2bf37f1656916eb75bd0742ba33983c28 (v3.19-rc1)

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