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-7402-3: Linux kernel (NVIDIA) vulnerabilities

4 April 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2024-53063, CVE-2024-56595, CVE-2024-56658 + 5 others

USN-7414-1: XZ Utils vulnerability

3 April 2025

XZ Utils could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 24.10 ,
  • 24.04 LTS

CVE ID

CVE-2025-31115

USN-7412-1: GnuPG vulnerability

3 April 2025

GnuPG could be made to corrupt a keyring.

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

CVE ID

CVE-2025-30258

USN-7411-1: OpenVPN vulnerability

3 April 2025

OpenVPN could be made to crash if it received specially crafted network traffic.

  • Ubuntu 24.10 ,
  • 24.04 LTS

CVE ID

CVE-2025-2704

USN-7409-1: RubySAML vulnerabilities

2 April 2025

Several security issues were fixed in ruby-saml.

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

CVE ID

CVE-2025-25292, CVE-2025-25291, CVE-2025-25293

USN-7402-2: Linux kernel (Real-time) vulnerabilities

1 April 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2024-53140, CVE-2024-53063, CVE-2024-50302 + 5 others

USN-7402-1: Linux kernel vulnerabilities

1 April 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 24.04 LTS,
  • 22.04 LTS

CVE ID

CVE-2024-53140, CVE-2024-56598, CVE-2024-53063 + 5 others

USN-7261-2: Vim vulnerability

1 April 2025

Vim could be made to crash.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2025-24014

USN-7285-2: nginx vulnerability

1 April 2025

nginx could be made to bypass client certificate authentication requirements.

  • Ubuntu 24.04 LTS

CVE ID

CVE-2025-23419

USN-7400-1: PHP vulnerabilities

31 March 2025

Several security issues were fixed in PHP.

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

CVE ID

CVE-2025-1734, CVE-2025-1219, CVE-2025-1736 + 3 others

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