USN-2651-1: GNU patch vulnerabilities
22 June 2015
Several security issues were fixed in GNU patch.
Releases
Packages
- patch - Apply a diff file to an original
Details
Jakub Wilk discovered that GNU patch did not correctly handle file paths in
patch files. An attacker could specially craft a patch file that could
overwrite arbitrary files with the privileges of the user invoking the program.
This issue only affected Ubuntu 12.04 LTS. (CVE-2010-4651)
László Böszörményi discovered that GNU patch did not correctly handle some
patch files. An attacker could specially craft a patch file that could cause a
denial of service. (CVE-2014-9637)
Jakub Wilk discovered that GNU patch did not correctly handle symbolic links in
git style patch files. An attacker could specially craft a patch file that
could overwrite arbitrary files with the privileges of the user invoking the
program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
(CVE-2015-1196)
Jakub Wilk discovered that GNU patch did not correctly handle file renames in
git style patch files. An attacker could specially craft a patch file that
could overwrite arbitrary files with the privileges of the user invoking the
program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
(CVE-2015-1395)
Jakub Wilk discovered the fix for CVE-2015-1196 was incomplete for GNU patch.
An attacker could specially craft a patch file that could overwrite arbitrary
files with the privileges of the user invoking the program. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-1396)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04
In general, a standard system update will make all the necessary changes.