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

61 - 70 of 192 results

27 April 2016

USN-2952-1 caused a regression in PHP.

  • Ubuntu 15.10

27 April 2016

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

  • Ubuntu 16.04 LTS,
  • 15.10 ,
  • 14.04 LTS,
  • 12.04

21 April 2016

Several security issues were fixed in MySQL.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

21 April 2016

Several security issues were fixed in PHP.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

19 April 2016

USN-2917-1 introduced several regressions in Firefox.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

18 April 2016

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

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

18 April 2016

Several security issues were fixed in Samba.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

7 April 2016

USN-2917-1 introduced several regressions in Firefox.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

6 April 2016

Several security issues were fixed in the kernel.

  • Ubuntu 15.10

6 April 2016

Several security issues were fixed in the kernel.

  • Ubuntu 15.10


Resources


Further reading


Canonical is offering
Expanded Security Maintenance

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