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
37 - 46 of 9880 results
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
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2025-21963, CVE-2025-21877, CVE-2025-21880 + 98 others
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-21963, CVE-2025-21877, CVE-2025-21880 + 99 others
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2025-21963, CVE-2025-21877, CVE-2025-21880 + 100 others
24 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2025-37752, CVE-2024-57996, CVE-2025-38350 + 7 others
23 September 2025
RabbitMQ Server could be made to expose sensitive information.
- Ubuntu 25.04
CVE ID
23 September 2025
Several security issues were fixed in pip.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2023-45803, CVE-2024-3651, CVE-2023-32681 + 1 other
22 September 2025
PAM could allow unintended access to network services.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
22 September 2025
GNU C Library 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
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