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-6651-1: Linux kernel vulnerabilities

23 February 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-51781, CVE-2024-0565, CVE-2023-6915 + 3 others

USN-6644-1: LibTIFF vulnerabilities

19 February 2024

Several security issues were fixed in LibTIFF.

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

CVE ID

CVE-2023-6228, CVE-2023-52356, CVE-2023-6277

USN-6643-1: NPM IP vulnerability

19 February 2024

NPM IP could be made to expose sensitive information over the network.

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

CVE ID

CVE-2023-42282

USN-6640-1: shadow vulnerability

15 February 2024

shadow could be made to expose sensitive information.

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

CVE ID

CVE-2023-4641

USN-6638-1: EDK II vulnerabilities

15 February 2024

Several security issues were fixed in EDK II.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-45232, CVE-2023-45233, CVE-2023-48733 + 7 others

USN-6636-1: ClamAV vulnerabilities

14 February 2024

Several security issues were fixed in ClamAV.

  • Ubuntu 23.10

CVE ID

CVE-2024-20328, CVE-2024-20290

USN-6634-1: .NET vulnerabilities

13 February 2024

Several security issues were fixed in .NET.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-21386, CVE-2024-21404

USN-6633-1: Bind vulnerabilities

13 February 2024

Several security issues were fixed in Bind.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-5517, CVE-2023-50387, CVE-2023-50868 + 2 others

USN-6631-1: WebKitGTK vulnerabilities

12 February 2024

Several security issues were fixed in WebKitGTK.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-23213, CVE-2024-23206, CVE-2024-23222

USN-6630-1: Glance_store vulnerability

12 February 2024

Glance_store could be made to expose sensitive information.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-1141

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