CVE-2014-7822

NameCVE-2014-7822
DescriptionThe implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-155-1, DSA-3170-1
NVD severityhigh (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1fixed
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)3.16.2-1high
linuxsourcewheezy3.2.65-1+deb7u2highDSA-3170-1
linux-2.6source(unstable)(unfixed)high
linux-2.6sourcesqueeze2.6.32-48squeeze11highDLA-155-1

Notes

Upstream fixes: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d0207652cbe27d1f962050737848e5ad4671958 (v3.16-rc1)

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