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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9 April 2024

A regression was fixed in X.Org X Server.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

9 April 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 14.04 LTS

9 April 2024

Bind could be made to crash if it received specially crafted input.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

8 April 2024

Django accounts could be hijacked through password reset requests.

  • Ubuntu 14.04 LTS

4 April 2024

Several security issues were fixed in X.Org X Server, xwayland.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS


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