Ubuntu Security Notices

Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.

To report a security vulnerability in an Ubuntu package, please contact the Security Team.

The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.

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5 April 2012

The GnuTLS library could be made to crash under certain conditions.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04

5 April 2012

libpng could be made to crash or run programs as your login if it opened a specially crafted file.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04

CVE ID

CVE-2011-3048


4 April 2012

The TIFF library could be made to crash or run programs as your login if it opened a specially crafted file.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04

3 April 2012

USN-1400-3 introduced regressions in Thunderbird.

  • Ubuntu 11.10

2 April 2012

An attacker could trick Aptdaemon into installing altered packages.

  • Ubuntu 11.10 ,
  • 11.04

CVE ID

CVE-2012-0944


29 March 2012

USN-1197-7 introduced a regression in ca-certificates-java.

  • Ubuntu 11.10

29 March 2012

Nova log files could be made to exhaust storage resources.

  • Ubuntu 11.10

CVE ID

CVE-2012-1585


29 March 2012

Several security issues were fixed in the kernel.

  • Ubuntu 11.10

CVE ID

CVE-2011-3347


27 March 2012

A certificate authority mis-issued fraudulent certificates.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.10 ,
  • 10.04

27 March 2012

Several security issues were fixed in the kernel.

  • Ubuntu 11.10


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