CVE-2015-8660

Priority
High
Description
The 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.
Ubuntu-Description
Nathan Williams discovered that overlayfs in the Linux kernel incorrectly
handled setattr operations. A local unprivileged attacker could use this to
create files with administrative permission attributes and execute
arbitrary code with elevated privileges.
References
Bugs
Notes
 jdstrand> android kernels (flo, goldfish, grouper, maguro, mako and manta) are
  not supported on the Ubuntu Touch 14.10 and earlier preview kernels
 jdstrand> linux-lts-saucy no longer receives official support
 jdstrand> linux-lts-quantal no longer receives official support
 sbeattie> kernel 3.16 and older not affected
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):released (4.2.0-23.28~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-vegetahd:not-affected
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Patches:
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):not-affected
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.3.0-6.17)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.8.0-22.24)
Patches:
Introduced by e9be9d5e76e34872f0c37d72e25bc27fe9e2c54cFixed by acff81ec2c79492b180fade3c2894425cd35a545
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (4.4.0-13.29~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-28.30~16.04.1)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):released (3.19.0-43.49~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):pending (4.4.0-1002.2)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.4)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.8.0-1013.15)
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Ubuntu 17.04 (Zesty Zapus):not-affected (4.4.0-1029.32)
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):not-affected
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-krillin:not-affected
Package
Upstream:released (4.4~rc4)
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu 16.04 LTS (Xenial Xerus):not-affected
Ubuntu 17.04 (Zesty Zapus):not-affected
More Information

Updated: 2017-10-18 19:16:35 UTC (commit 13547)