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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11 - 20 of 2364 results

19 June 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

19 June 2025

Roundcube Webmail could allow remote code execution.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

19 June 2025

Several security issues were fixed in Express.

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

18 June 2025

libblockdev could be made to run programs as an administrator.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2025-6019


18 June 2025

UDisks could be made to run programs as an administrator.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2025-6019


18 June 2025

Several security issues were fixed in Godot Engine.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS

18 June 2025

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

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

17 June 2025

Django could be made to log injection if received specially crafted input.

  • Ubuntu 20.04 LTS

16 June 2025

Python could be made to crash or expose sensitive information.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

16 June 2025

USN-7536-1 introduced a regression in cifs-utils.

  • Ubuntu 25.04 ,
  • 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS


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