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

1 - 10 of 585 results

24 May 2011

A denial of service issue exists that affects the Apache web server.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04 ,
  • 6.06

11 May 2011

An attacker could send crafted input to Postfix and cause it to crash or run programs.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04 ,
  • 6.06

CVE ID

CVE-2011-1720


5 May 2011

Multiple flaws fixed in the Linux kernel.

  • Ubuntu 6.06

5 May 2011

USN 1126-1 introduced two regressions in PHP.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

3 May 2011

An attacker could send crafted input to Perl and bypass intended restrictions.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 8.04 ,
  • 6.06

29 April 2011

Multiple vulnerabilities in PHP.

  • Ubuntu 11.04 ,
  • 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

20 April 2011

An attacker could send crafted input to OpenSLP and cause it to hang.

  • Ubuntu 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

CVE ID

CVE-2010-3609


18 April 2011

An attacker could send crafted input to Postfix and cause it to reveal confidential information.

  • Ubuntu 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

11 April 2011

An attacker's DHCP server could send crafted responses to your computer and cause it to run programs as root.

  • Ubuntu 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

CVE ID

CVE-2011-0997


4 April 2011

Certain applications could be made to run programs as your login if they opened a specially crafted TIFF file.

  • Ubuntu 10.10 ,
  • 10.04 ,
  • 9.10 ,
  • 8.04 ,
  • 6.06

CVE ID

CVE-2011-1167


  1. Previous page
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. Next page

Resources


Further reading

  • Loading...

Canonical is offering
Expanded Security Maintenance

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