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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71 - 80 of 315 results

2 July 2012

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

  • Ubuntu 11.10 ,
  • 11.04

29 June 2012

Several security issues were fixed in the kernel.

  • Ubuntu 11.04

28 June 2012

PyCrypto improperly created ElGamal encryption keys.

  • Ubuntu 12.04 ,
  • 11.10 ,
  • 11.04 ,
  • 10.04

CVE ID

CVE-2012-2417


27 June 2012

NetworkManager could create insecure AdHoc wireless networks.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.04

CVE ID

CVE-2012-2736


27 June 2012

network-manager-applet could create insecure AdHoc wireless networks.

  • Ubuntu 11.10 ,
  • 11.04 ,
  • 10.04

CVE ID

CVE-2012-2736


27 June 2012

Several security issues were fixed in Thunderbird.

  • Ubuntu 11.04

27 June 2012

Popup menus were not working in Thunderbird under Unity 2D when started from the launcher.

  • Ubuntu 11.04

20 June 2012

USN-1463-1 introduced regressions in Firefox.

  • Ubuntu 12.04 ,
  • 11.10 ,
  • 11.04 ,
  • 10.04

20 June 2012

ClamAV could improperly detect malware if it opened a specially crafted file.

  • Ubuntu 12.04 ,
  • 11.10 ,
  • 11.04

19 June 2012

ClamAV could improperly detect malware if it opened a specially crafted file.

  • Ubuntu 12.04 ,
  • 11.10 ,
  • 11.04 ,
  • 10.04


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