[USN-2651-1] GNU patch vulnerabilities

2015-06-29T00:00:00
ID SECURITYVULNS:DOC:32250
Type securityvulns
Reporter Securityvulns
Modified 2015-06-29T00:00:00

Description

========================================================================== Ubuntu Security Notice USN-2651-1 June 22, 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)

Laszlo Boszormenyi 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: 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

In general, a standard system update will make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-2651-1 CVE-2010-4651, CVE-2014-9637, CVE-2015-1196, CVE-2015-1395, CVE-2015-1396

Package Information: https://launchpad.net/ubuntu/+source/patch/2.7.1-5ubuntu0.3 https://launchpad.net/ubuntu/+source/patch/2.7.1-4ubuntu2.3 https://launchpad.net/ubuntu/+source/patch/2.6.1-3ubuntu0.1

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