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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261 - 270 of 315 results

17 August 2011

This update provides a compatible Mozvoikko for Firefox 6.

  • Ubuntu 11.04

17 August 2011

Multiple Firefox vulnerabilities have been fixed

  • Ubuntu 11.04

15 August 2011

libXfont could be made to run programs as an administrator if it opened a specially crafted file.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-2895


15 August 2011

An attacker could send crafted input to DHCP and cause it to crash.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04

9 August 2011

eCryptfs could be tricked into mounting and unmounting arbitrary locations, and possibly disclose confidential information.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

2 August 2011

An attacker could use a malicious URL to reconfigure Samba or steal information.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04

28 July 2011

An attacker could send crafted URLs to a SoupServer application and obtain unintended access to files.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-2524


28 July 2011

An authenticated attacker could send crafted input to libvirt and cause it to crash.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-2511


28 July 2011

An attacker could send crafted input to ClamAV and cause it to crash.

  • Ubuntu 11.04

CVE ID

CVE-2011-2721


27 July 2011

An attacker could discover a user's name or confuse a user into granting unintended access to files.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04


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