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
1 - 10 of 114 results
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 OpenJDK 24.
- Ubuntu 25.04
CVE ID
CVE-2025-50106, CVE-2025-30754, CVE-2025-30749 + 1 other
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
23 July 2025
Several security issues were fixed in Rack.
- Ubuntu 25.04
CVE ID
22 July 2025
The Unbound cache could be poisoned if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
22 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 25.04
CVE ID
CVE-2025-37900, CVE-2025-37922, CVE-2025-37905 + 43 others
22 July 2025
Several security issues were fixed in GDK-PixBuf.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
22 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 25.04
CVE ID
CVE-2025-37946, CVE-2025-37895, CVE-2025-37897 + 43 others
22 July 2025
Several security issues were fixed in fdkaac.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2022-36148, CVE-2022-37781, CVE-2023-34824 + 1 other
21 July 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 25.04
CVE ID
CVE-2025-37997, CVE-2025-38000, CVE-2025-37890 + 2 others
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