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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31 - 40 of 192 results

2 June 2016

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

  • Ubuntu 16.04 LTS,
  • 15.10 ,
  • 14.04 LTS

CVE ID

CVE-2016-4450


2 June 2016

Several security issues were fixed in ImageMagick.

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

31 May 2016

Several security issues were fixed in LXD.

  • Ubuntu 16.04 LTS,
  • 15.10

31 May 2016

The GD library could be made to crash or run programs if it processed a specially crafted image file.

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

31 May 2016

dosfstools could be made to crash or run programs if it processed a specially crafted filesystem.

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

26 May 2016

USN-2985-1 introduced a regression in the GNU C Library.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

25 May 2016

Several security issues were fixed in the GNU C Library.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

25 May 2016

USN-2950-1 introduced a regression in Samba.

  • Ubuntu 16.04 LTS,
  • 15.10 ,
  • 14.04 LTS

24 May 2016

Several security issues were fixed in PHP.

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

19 May 2016

USN-2936-1 introduced a regression in Firefox.

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


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Expanded Security Maintenance

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