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 2731 results
22 July 2025
Several security issues were fixed in jq.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
22 July 2025
Several security issues were fixed in Sinatra.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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 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 Drupal.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
17 July 2025
Several security issues were fixed in PHP.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-1736, CVE-2025-1217, CVE-2025-1734 + 1 other
17 July 2025
Several security issues were fixed in LedgerSMB.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-3731, CVE-2021-3693, CVE-2021-3882 + 2 others
17 July 2025
Rails could be made to expose sensitive information over the network.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
17 July 2025
Erlang could be made to run programs if it received specially crafted network traffic.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
17 July 2025
Several security issues were fixed in libsoup.
- Ubuntu 25.04 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-4969, CVE-2025-4945, CVE-2025-32907 + 2 others
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