CVE-2015-8660

NameCVE-2015-8660
DescriptionThe ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.57-2fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u3fixed
buster4.17.14-1fixed
sid4.17.17-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.3.3-3high
linuxsourcejessie(not affected)
linuxsourcewheezy(not affected)
linux-2.6source(unstable)(not affected)

Notes

[jessie] - linux <not-affected> (Vulnerable code not present)
[wheezy] - linux <not-affected> (Vulnerable code not present)
- linux-2.6 <not-affected> (Vulnerable code not present)
Upstream commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 (v4.4-rc4)
OverlayFS introduced in https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9be9d5e76e34872f0c37d72e25bc27fe9e2c54c (v3.18-rc2)
http://www.openwall.com/lists/oss-security/2015/12/23/5

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