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-6754-2: nghttp2 vulnerability

7 May 2024

Several security issues were fixed in nghttp2.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2024-28182

USN-6763-1: libvirt vulnerability

7 May 2024

libvirt could allow unintended access to the virtproxyd service.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2024-4418

USN-6757-2: PHP vulnerabilities

2 May 2024

Several security issues were fixed in PHP.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2022-4900, CVE-2024-2756, CVE-2024-3096

USN-6762-1: GNU C Library vulnerabilities

2 May 2024

Several security issues were fixed in GNU C Library.

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

CVE ID

CVE-2024-2961, CVE-2021-3999, CVE-2014-9984 + 2 others

USN-6747-2: Firefox regressions

2 May 2024

USN-6747-1 caused some minor regressions in Firefox.

  • Ubuntu 20.04 LTS

USN-6760-1: Gerbv vulnerability

30 April 2024

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

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

CVE ID

CVE-2023-4508

LSN-0103-1: Kernel Live Patch Security Notice

30 April 2024

Several security issues were fixed in the kernel.

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

CVE ID

CVE-2024-0193, CVE-2024-26597, CVE-2023-51781 + 4 others

USN-6758-1: JSON5 vulnerability

30 April 2024

JSON5 could allow unintended access to network services or have other unspecified impact.

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

CVE ID

CVE-2022-46175

USN-6761-1: Anope vulnerability

30 April 2024

Anope could be made to bypass authentication checks for suspended accounts.

  • Ubuntu 24.04 LTS,
  • 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2024-30187

USN-6759-1: FreeRDP vulnerabilities

29 April 2024

Several security issues were fixed in FreeRDP.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2024-32658, CVE-2024-32660, CVE-2024-32661 + 2 others

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