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
31 - 40 of 2497 results
22 April 2025
Several security issues were fixed in Synapse.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2023-41335, CVE-2023-32683, CVE-2023-43796 + 5 others
17 April 2025
Several security issues were fixed in Ruby.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2025-27220, CVE-2025-27221, CVE-2025-27219 + 1 other
16 April 2025
Several security issues were fixed in Eclipse Mosquitto.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
16 April 2025
Several security issues were fixed in the kernel.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2024-50302, CVE-2024-26928, CVE-2024-53063 + 5 others
15 April 2025
Several security issues were fixed in CImg.
- Ubuntu 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 18.04 LTS
CVE ID
9 April 2025
poppler could be made to crash if it opened a specially crafted PDF file.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
9 April 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2021-47101, CVE-2022-23041, CVE-2024-50302 + 17 others
9 April 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-47119, CVE-2024-35973, CVE-2024-50302 + 17 others
7 April 2025
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
7 April 2025
Several security issues were fixed in FIS-GT.M.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-44502, CVE-2021-44510, CVE-2021-44506 + 5 others
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