CVE-2015-8374

NameCVE-2015-8374
Descriptionfs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
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)4.2.6-2low
linuxsourcejessie3.16.7-ckt20-1+deb8u1low
linuxsourcewheezy3.2.78-1low
linux-2.6source(unstable)(unfixed)low

Notes

[squeeze] - linux-2.6 <no-dsa> (btrfs in 2.6.32 is just a tech preview and not usable for production)
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0305cd5f7fca85dae392b9ba85b116896eb7c1c7 (v4.4-rc1)
http://www.openwall.com/lists/oss-security/2015/11/27/2
CVE assignment for the vulnerability with the impact of "User B now
gets to see the 1000 bytes that user A truncated from its file before
it made its file world readable"

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