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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1 March 2016

Several security issues were fixed in Django.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

1 March 2016

Several security issues were fixed in OpenSSL.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

24 February 2016

Updated OpenSSL packages are required for the USN-2913-1 update.

  • Ubuntu 14.04 LTS,
  • 12.04

24 February 2016

Updated glib-networking packages are required for the USN-2913-1 update.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

24 February 2016

Updated GnuTLS packages are required for the USN-2913-1 update.

  • Ubuntu 14.04 LTS,
  • 12.04

24 February 2016

ca-certificates was updated to the 20160104 package.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

23 February 2016

USN-2903-1 introduced a regression in NSS.

  • Ubuntu 12.04

23 February 2016

Several security issues were fixed in libssh.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

22 February 2016

The system could be made to crash under certain conditions.

  • Ubuntu 12.04

CVE ID

CVE-2015-7550


22 February 2016

The system could be made to crash under certain conditions.

  • Ubuntu 12.04

CVE ID

CVE-2015-7550



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