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.

Subscribe for updates  

Mailing list Atom RSS

Search USNs

USN ID, name, description or CVE ID contains


Filter by Ubuntu release

391 - 400 of 9455 results

10 February 2025

Several security issues were fixed in OpenRefine.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS

6 February 2025

GNU C Library could be made to crash or run programs if it received specially crafted input.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2025-0395


6 February 2025

Several security issues were fixed in Ruby.

  • Ubuntu 20.04 LTS

6 February 2025

Several security issues were fixed in CKEditor.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

5 February 2025

A system authentication measure could be bypassed.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-3596


5 February 2025

OpenJDK 23 could be made to expose sensitive information over the network.

  • Ubuntu 24.10

5 February 2025

OpenJDK 21 could be made to expose sensitive information over the network.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS

5 February 2025

OpenJDK 17 could be made to expose sensitive information over the network.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

5 February 2025

OpenJDK 11 could be made to expose sensitive information over the network.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

5 February 2025

USN-7096-1 caused some minor regressions in OpenJDK 8.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS


Resources


Further reading

  • Loading...

Canonical is offering
Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.