Ubuntu Security Notice USN-2651-1
22nd June, 2015
patch vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Several security issues were fixed in GNU patch.
Software description
- 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 version:
- Ubuntu 14.10:
-
patch
2.7.1-5ubuntu0.3
- Ubuntu 14.04 LTS:
-
patch
2.7.1-4ubuntu2.3
- Ubuntu 12.04 LTS:
-
patch
2.6.1-3ubuntu0.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.