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
531 - 540 of 2862 results
24 January 2024
Apache::Session::LDAP could be made to expose sensitive information through spoofing if it received invalid X.509 certificate.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
22 January 2024
Several security issues were fixed in X.Org X Server.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2023-6816, CVE-2024-0408, CVE-2024-0229 + 3 others
22 January 2024
Postfix could allow bypass of email authentication if it received specially crafted network traffic.
- Ubuntu 23.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
18 January 2024
Several security issues were fixed in Xerces-C++.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
16 January 2024
Several security issues were fixed in ZooKeeper.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
16 January 2024
Several security issues were fixed in FreeImage.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2020-21427, CVE-2020-21428, CVE-2019-12213 + 2 others
15 January 2024
Several security issues were fixed in Libspf2.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
15 January 2024
Several security issues were fixed in MySQL.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
11 January 2024
Xerces-C++ could be made to crash or run programs if it opened a specially crafted file.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
11 January 2024
Several security issues were fixed in OpenSSH.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
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