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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12 April 2022

Several security issues were fixed in Subversion.

  • Ubuntu 21.10 ,
  • 20.04 LTS

12 April 2022

Several security issues were fixed in nginx.

  • Ubuntu 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

11 April 2022

libarchive could be made to expose sensitive information if it received a specially crafted archive file.

  • Ubuntu 21.10 ,
  • 20.04 LTS

11 April 2022

Several security issues were fixed in Django.

  • Ubuntu 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

7 April 2022

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

  • Ubuntu 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS


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Expanded Security Maintenance

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