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
1631 - 1640 of 2794 results
27 September 2021
Several security issues were fixed in Apache HTTP Server.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-34798, CVE-2021-33193, CVE-2021-40438 + 2 others
23 September 2021
A certificate about to expire was removed from ca-certificates.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
22 September 2021
Several security issues were fixed in WebKitGTK.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
22 September 2021
IBM s390x systems could be made to crash or run programs as an administrator.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
22 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
22 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
21 September 2021
USN-5079-1 introduced a regression in curl.
- Ubuntu 18.04 LTS
17 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-38160, CVE-2021-3656, CVE-2021-3653 + 2 others
16 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2021-3656, CVE-2021-3612, CVE-2021-3653 + 2 others
16 September 2021
Several security issues were fixed in Qt.
- Ubuntu 18.04 LTS
CVE ID
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