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
11 - 20 of 9862 results
25 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-38312, CVE-2025-38337, CVE-2025-38345 + 140 others
25 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-38203, CVE-2025-38312, CVE-2025-37958 + 139 others
25 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-38203, CVE-2025-38312, CVE-2025-37958 + 139 others
25 September 2025
Several security issues were fixed in Gnuplot.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2025-31179, CVE-2025-31181, CVE-2025-31176 + 4 others
24 September 2025
Eventlet could be made to bypass front-end security controls if it received a specially crafted request.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-38082, CVE-2025-38275, CVE-2025-38274 + 180 others
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-38106, CVE-2025-38123, CVE-2025-38128 + 179 others
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 25.04
CVE ID
CVE-2025-38082, CVE-2025-38275, CVE-2025-38274 + 181 others
24 September 2025
dpkg could be made to consume disk space if it opened a specially crafted file.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2025-22015, CVE-2025-21996, CVE-2025-22001 + 98 others
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