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.
Search USNs
USN ID, name, description or CVE ID contains
351 - 360 of 946 results
30 July 2025
A security issue was fixed in the Linux kernel.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
29 July 2025
Perl could be made to target unintended paths when performing file operations.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
28 July 2025
Several security issues were fixed in cloud-init.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
28 July 2025
SQLite could be made to crash or run programs if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
28 July 2025
poppler could be made to crash or run programs if it opened a specially crafted file.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
28 July 2025
Several security issues were fixed in OpenJDK 11.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2025-30749, CVE-2025-50059, CVE-2025-50106 + 2 others
24 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-21830, CVE-2024-57997, CVE-2024-58081 + 114 others
24 July 2025
iputils could be made to consume resources and crash if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
24 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-37933, CVE-2025-37930, CVE-2025-37907 + 49 others
24 July 2025
Several security issues were fixed in OpenJDK 21.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2025-50106, CVE-2025-30754, CVE-2025-50059 + 1 other
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