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
1081 - 1090 of 2679 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
23 January 2024
Several security issues were fixed in Squid.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 January 2024
Several security issues were fixed in GnuTLS.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 January 2024
Several security issues were fixed in libssh.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
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
18 January 2024
FileZilla could be made to expose sensitive information over the network.
- Ubuntu 23.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
17 January 2024
PAM could be made to stop responding if it opened a specially crafted file.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 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 X.Org X Server.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2024-21886, CVE-2024-21885, CVE-2024-0408 + 3 others
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