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-6732-1: WebKitGTK vulnerabilities

15 April 2024

Several security issues were fixed in WebKitGTK.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-23254, CVE-2024-23280, CVE-2024-23284 + 5 others

USN-6731-1: YARD vulnerabilities

15 April 2024

Several security issues were fixed in yard.

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

CVE ID

CVE-2017-17042, CVE-2019-1020001, CVE-2024-27285

USN-6729-1: Apache HTTP Server vulnerabilities

11 April 2024

Several security issues were fixed in Apache HTTP Server.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-27316, CVE-2024-24795, CVE-2023-38709

USN-6728-1: Squid vulnerabilities

10 April 2024

Several security issues were fixed in Squid.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-23638, CVE-2023-5824, CVE-2024-25617 + 2 others

USN-6727-1: NSS vulnerabilities

10 April 2024

Several security issues were fixed in NSS.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-5388, CVE-2023-6135, CVE-2023-4421

USN-6719-2: util-linux vulnerability

10 April 2024

util-linux could be made to expose sensitive information.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-28085

USN-6721-2: X.Org X Server regression

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

USN-6724-1: Linux kernel vulnerabilities

9 April 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-6610, CVE-2024-23851, CVE-2023-52429 + 9 others

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

USN-6715-1: unixODBC vulnerability

27 March 2024

unixODBC could be made to crash or execute arbitrary code.

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

CVE ID

CVE-2024-1013

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