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
161 - 170 of 641 results
27 May 2025
cifs-utils could be made to expose sensitive information.
- Ubuntu 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
27 May 2025
Several security issues were fixed in Intel Microcode.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2024-45332, CVE-2025-24495, CVE-2025-20623 + 5 others
26 May 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2024-56551, CVE-2024-53198, CVE-2024-56632 + 702 others
26 May 2025
Tomcat could expose sensitive files or run programs if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS
CVE ID
26 May 2025
GLib could be made to crash or execute arbitrary code if it received a specially crafted input.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 May 2025
Several security issues were fixed in SQLite.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
21 May 2025
Tomcat could expose sensitive files or run programs if it received specially crafted network traffic.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
20 May 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2024-57793, CVE-2024-53068, CVE-2024-53096 + 701 others
20 May 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2024-57793, CVE-2024-56670, CVE-2025-21649 + 131 others
20 May 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 24.04 LTS
CVE ID
CVE-2024-57793, CVE-2024-56670, CVE-2025-21649 + 133 others
Resources
Join the discussion
Canonical is offering
Expanded Security Maintenance
Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.