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 August 2014

Samba could be made to run programs as an administrator if it received specially crafted network traffic.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2014-3560


31 July 2014

kauth could be tricked into bypassing polkit authorizations.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2014-5033


31 July 2014

The Unity lock screen could possibly be bypassed in certain circumstances.

  • Ubuntu 14.04 LTS

30 July 2014

Several security issues were fixed in Tomcat.

  • Ubuntu 14.04 LTS,
  • 12.04 ,
  • 10.04

24 July 2014

LZO could be made to crash or run programs if it processed specially crafted data.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2014-4607


23 July 2014

Several security issues were fixed in Oxide.

  • Ubuntu 14.04 LTS

23 July 2014

Several security issues were fixed in Apache HTTP Server.

  • Ubuntu 14.04 LTS,
  • 12.04 ,
  • 10.04

22 July 2014

Several security issues were fixed in Thunderbird.

  • Ubuntu 14.04 LTS,
  • 12.04

22 July 2014

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

  • Ubuntu 14.04 LTS,
  • 12.04

22 July 2014

Libtasn1 could be made to crash or run programs as your login if it processed specially crafted data.

  • Ubuntu 14.04 LTS,
  • 12.04 ,
  • 10.04


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