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
541 - 550 of 10364 results
17 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2024-53130, CVE-2024-50051, CVE-2024-50202 + 7 others
17 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-53130, CVE-2024-50051, CVE-2024-50202 + 7 others
17 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
17 September 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
16 September 2025
xmltodict could be made to crash or run programs if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
16 September 2025
libyang could be made to crash if it received specially crafted input.
- Ubuntu 24.04 LTS
CVE ID
15 September 2025
SQLite could be made to crash or run programs if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.04 LTS
CVE ID
15 September 2025
JSON-XS could be made to crash if it parsed specially crafted JSON.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
15 September 2025
Cpanel-JSON-XS could be made to crash if it parsed specially crafted JSON.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
15 September 2025
RubyGems could be made to consume resources if it received specially crafted input.
- Ubuntu 22.04 LTS
CVE ID
Resources
Join the discussion
Get up to 15 years of security
maintenance for your new or established systems
Get up to 15 years of security maintenance for your entire Ubuntu Archive. Keep your systems stable with security backporting and avoid forced upgrades.