USN-906-1: CUPS vulnerabilities

Publication date

3 March 2010

Overview

CUPS vulnerabilities


Packages

Details

It was discovered that the CUPS scheduler did not properly handle certain
network operations. A remote attacker could exploit this flaw and cause the
CUPS server to crash, resulting in a denial of service. This issue only
affected Ubuntu 8.04 LTS, 8.10, 9.04 and 9.10. (CVE-2009-3553,
CVE-2010-0302)

Ronald Volgers discovered that the CUPS lppasswd tool could be made to load
localized message strings from arbitrary files by setting an environment
variable. A local attacker could exploit this with a format-string
vulnerability leading to a root privilege escalation. The default compiler
options for Ubuntu 8.10, 9.04 and 9.10 should reduce this vulnerability to
a denial of service. (CVE-2010-0393)

It was discovered that the CUPS scheduler did not properly handle certain
network operations. A remote attacker could exploit this flaw and cause the
CUPS server to crash, resulting in a denial of service. This issue only
affected Ubuntu 8.04 LTS, 8.10, 9.04 and 9.10. (CVE-2009-3553,
CVE-2010-0302)

Ronald Volgers discovered that the CUPS lppasswd tool could be made to load
localized message strings from arbitrary files by setting an environment
variable. A local attacker could exploit this with a format-string
vulnerability leading to a root privilege escalation. The default compiler
options for Ubuntu 8.10, 9.04 and 9.10 should reduce this vulnerability to
a denial of service. (CVE-2010-0393)

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
9.10 karmic cups –  1.4.1-5ubuntu2.4
cups-client –  1.4.1-5ubuntu2.4
9.04 jaunty cups –  1.3.9-17ubuntu3.6
cups-client –  1.3.9-17ubuntu3.6
8.10 intrepid cups –  1.3.9-2ubuntu9.5
cups-client –  1.3.9-2ubuntu9.5
8.04 hardy cupsys-client –  1.3.7-1ubuntu3.8
cupsys –  1.3.7-1ubuntu3.8
6.06 dapper cupsys-client –  1.2.2-0ubuntu0.6.06.17
cupsys –  1.2.2-0ubuntu0.6.06.17

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