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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USN-6722-1: Django vulnerability

8 April 2024

Django accounts could be hijacked through password reset requests.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2019-19844

USN-6721-1: X.Org X Server vulnerabilities

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

CVE ID

CVE-2024-31083, CVE-2024-31082, CVE-2024-31081 + 1 other

LSN-0102-1: Kernel Live Patch Security Notice

3 April 2024

Several security issues were fixed in the kernel.

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

CVE ID

CVE-2023-6176, CVE-2023-4569, CVE-2024-0646 + 3 others

USN-6588-2: PAM vulnerability

26 March 2024

PAM could be made to stop responding if it opened a specially crafted file.

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

CVE ID

CVE-2024-22365

USN-6708-1: Graphviz vulnerability

21 March 2024

Graphviz could be made to crash if it opened a specially crafted config6a file.

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

CVE ID

CVE-2023-46045

USN-6700-1: Linux kernel vulnerabilities

18 March 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2023-34256, CVE-2023-51781, CVE-2024-24855 + 4 others

USN-6699-1: Linux kernel vulnerabilities

18 March 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2024-24855, CVE-2023-30456, CVE-2023-4921

USN-6698-1: Vim vulnerability

18 March 2024

Vim could be made to crash if it opened a specially crafted file.

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

CVE ID

CVE-2024-22667

USN-6587-5: X.Org X Server vulnerabilities

13 March 2024

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

  • Ubuntu 14.04 LTS

CVE ID

CVE-2024-21886, CVE-2023-6478, CVE-2023-6816 + 3 others

LSN-0101-1: Kernel Live Patch Security Notice

12 March 2024

Several security issues were fixed in the kernel.

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

CVE ID

CVE-2023-6817, CVE-2023-6932, CVE-2023-7192 + 2 others

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