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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28 November 2022

Weak session cookies generated using libICE could allow sensitive information to be exposed.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2017-2626


24 November 2022

JBIG-KIT could be made to crash if it opened a specially crafted file.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2017-9937


24 November 2022

Exim could be made to crash or run programs if it processed specially crafted regular expressions.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-3559


24 November 2022

Several security issues were fixed in ImageMagick.

  • Ubuntu 22.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

23 November 2022

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

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

23 November 2022

Expat could be made to crash or execute arbitrary code.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

22 November 2022

Several security issues were fixed in FreeRDP.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

21 November 2022

Several security issues were fixed in FLAC.

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

18 November 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

18 November 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS


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