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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19 October 2022

Perl could be made to by pass signature verification.

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

19 October 2022

Libksba could be made to crash or run programs if it decoded specially crafted data.

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

CVE ID

CVE-2022-3515


17 October 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 ,
  • 14.04

13 October 2022

Several security issues were fixed in Heimdal.

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

13 October 2022

Several security issues were fixed in unzip.

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

10 October 2022

Several security issues were fixed in Oniguruma.

  • Ubuntu 18.04 LTS,
  • 16.04 ,
  • 14.04

4 October 2022

Several security issues were fixed in Tor.

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

3 October 2022

strongSwan could be made do denial of service if it received a specially crafted certificate.

  • Ubuntu 16.04 ,
  • 14.04

3 October 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 ,
  • 14.04

30 September 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 ,
  • 14.04


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