USN-2906-1: GNU cpio vulnerabilities
22 February 2016
Several security issues were fixed in GNU cpio.
Releases
Packages
- cpio - a tool to manage archives of files
Details
Alexander Cherepanov discovered that GNU cpio incorrectly handled symbolic
links when used with the --no-absolute-filenames option. If a user or
automated system were tricked into extracting a specially-crafted cpio
archive, a remote attacker could possibly use this issue to write arbitrary
files. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2015-1197)
Gustavo Grieco discovered that GNU cpio incorrectly handled memory when
extracting archive files. If a user or automated system were tricked into
extracting a specially-crafted cpio archive, a remote attacker could use
this issue to cause GNU cpio to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2016-2037)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10
Ubuntu 14.04
Ubuntu 12.04
In general, a standard system update will make all the necessary changes.