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

111 - 120 of 349 results

26 October 2012

Exim could be made to run programs if it received specially crafted network traffic.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 11.04 ,
  • 10.04

CVE ID

CVE-2012-5671


23 October 2012

Several security issues were fixed in Python 3.2.

  • Ubuntu 12.10 ,
  • 12.04 ,
  • 11.10 ,
  • 11.04

15 October 2012

Privilege escalation via the GSSAPI_MECH_CONF environment variable with setuid programs.

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

CVE ID

CVE-2011-2709


12 October 2012

Several security issues were fixed in Thunderbird.

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

12 October 2012

The system could be made to crash under certain conditions.

  • Ubuntu 11.10

11 October 2012

Several security issues were fixed in Firefox.

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

11 October 2012

Several security issues were fixed in the kernel.

  • Ubuntu 11.10

11 October 2012

Quagga could be made to crash if it received specially crafted network traffic.

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

CVE ID

CVE-2012-1820


11 October 2012

Several security issues were fixed in MoinMoin.

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

10 October 2012

Ruby could allow excessive access in untrusted programs.

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


Resources


Further reading

  • Loading...

Canonical is offering
Expanded Security Maintenance

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