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
91 - 100 of 286 results
5 May 2025
Corosync could be made to crash if it received specially crafted network traffic.
- Ubuntu 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
5 May 2025
c-ares could be made to crash if it received specially crafted network traffic.
- Ubuntu 25.04 ,
- 24.10
CVE ID
1 May 2025
Several security issues were fixed in micropython.
- Ubuntu 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
1 May 2025
Ghostscript could be made to crash, run programs, or read files if it opened a specially crafted file.
- Ubuntu 24.10 ,
- 24.04 LTS
CVE ID
29 April 2025
poppler could be made to treat documents with forged signatures as legitimately signed.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
28 April 2025
Several security issues were fixed in libxml2.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
28 April 2025
Jupyter Notebook could be made to crash if it received specially crafted input.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
24 April 2025
OpenSSH could allow unintended access to network services.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
23 April 2025
Several security issues were fixed in libarchive.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
23 April 2025
mod_auth_openidc could be made to expose sensitive information over the network.
- Ubuntu 25.04 ,
- 24.10 ,
- 24.04 LTS,
- 22.04 LTS
CVE ID
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