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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7 May 2013

Several security issues were fixed in OpenJDK 6.

  • Ubuntu 12.04 ,
  • 11.10 ,
  • 10.04

3 May 2013

ClamAV could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 13.04 ,
  • 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

25 April 2013

Several security issues were fixed in MySQL.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

23 April 2013

Due to a regression, IcedTea-Web might not be able to access some sites.

  • Ubuntu 12.04 ,
  • 11.10

18 April 2013

Two security issues were fixed in IcedTea-Web.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

17 April 2013

The X server could be made to reveal keystrokes of other users.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

CVE ID

CVE-2013-1940


16 April 2013

Applications using libcurl could be made to expose sensitive information over the network.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04 ,
  • 8.04

CVE ID

CVE-2013-1944


15 April 2013

HAProxy could be made to crash or run programs if it received specially crafted network traffic.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10

8 April 2013

Several security issues were fixed in Thunderbird.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

4 April 2013

Firefox could be made to crash or run programs as your login if it opened a malicious website.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 10.04

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Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.