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.

Subscribe for updates  

Mailing list Atom RSS

Search USNs

USN ID, name, description or CVE ID contains


Filter by Ubuntu release

21 - 30 of 349 results

20 March 2013

Two security issues were fixed in Nova.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10

19 March 2013

Perl could be made to stop responding if it received specially crafted input.

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

CVE ID

CVE-2013-1667


18 March 2013

Several security issues were fixed in the Apache HTTP Server.

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

14 March 2013

NSPR update to work with the new NSS.

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

14 March 2013

NSS could be made to expose sensitive information over the network.

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

CVE ID

CVE-2013-1620


14 March 2013

An attacker could trick APT into installing altered packages.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10

CVE ID

CVE-2013-1051


13 March 2013

PHP could be made to expose sensitive information over the network.

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

CVE ID

CVE-2013-1643


13 March 2013

Thunderbird could be made to crash or run programs as your login.

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

CVE ID

CVE-2013-0787


12 March 2013

Several security issues were fixed in Puppet.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10

8 March 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

CVE ID

CVE-2013-0787



Resources


Further reading


Canonical is offering
Expanded Security Maintenance

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