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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USN-1230-1: Quassel vulnerability

14 October 2011

An unprivileged user could read files in the data and logging directories, including an automatically generated SSL certificate, used by the quasselcore daemon.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

USN-1229-1: PostgreSQL vulnerability

13 October 2011

PostgreSQL incorrectly handled blowfish passwords.

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

CVE ID

CVE-2011-2483

USN-1223-2: Puppet regression

5 October 2011

USN-1223-1 caused a regression with managing SSH authorized_keys files.

  • Ubuntu 10.04

USN-1226-1: Samba vulnerabilities

4 October 2011

An attacker could trick Samba into corrupting the system mtab file.

  • Ubuntu 10.04 ,
  • 8.04

CVE ID

CVE-2011-1678, CVE-2011-2724, CVE-2011-3585

USN-1223-1: Puppet vulnerabilities

30 September 2011

Puppet could be made to overwrite files and run programs with administrator privileges.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-3869, CVE-2011-3870, CVE-2011-3871

USN-1221-1: Mutt vulnerability

29 September 2011

An attacker could trick mutt into trusting a rogue server.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-1429

USN-1219-1: Linux kernel (Maverick backport) vulnerabilities

29 September 2011

Multiple kernel flaws have been fixed.

  • Ubuntu 10.04

CVE ID

CVE-2011-1576, CVE-2011-1776, CVE-2011-1833 + 9 others

USN-1218-1: Linux kernel vulnerabilities

29 September 2011

Multiple kernel flaws have been fixed.

  • Ubuntu 10.04

CVE ID

CVE-2010-4076, CVE-2010-4077, CVE-2010-4251 + 18 others

USN-1217-1: Puppet vulnerability

29 September 2011

An attacker could send crafted input to puppet and cause it to overwrite files.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-3848

USN-1213-1: Thunderbird vulnerabilities

28 September 2011

Multiple vulnerabilities were fixed in Thunderbird.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04

CVE ID

CVE-2011-2372, CVE-2011-2995, CVE-2011-2996 + 2 others

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