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
4441 - 4450 of 10611 results
13 September 2021
Several security issues were fixed in the kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-3653, CVE-2021-22555, CVE-2021-3656 + 1 other
10 September 2021
Ghostscript could be made to crash, access files, or run programs if it opened a specially crafted file.
- Ubuntu 21.04 ,
- 20.04 LTS
CVE ID
9 September 2021
Firefox could be made to crash or run programs as your login if it opened a malicious website.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
9 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-3612, CVE-2021-34693, CVE-2021-38160 + 2 others
8 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
8 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2020-36311, CVE-2021-22543, CVE-2021-3653 + 2 others
8 September 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 21.04 ,
- 20.04 LTS
CVE ID
CVE-2021-3612, CVE-2021-38198, CVE-2021-22543 + 7 others
8 September 2021
mod-auth-mellon could be made to redirect to arbitrary sites.
- Ubuntu 21.04
CVE ID
8 September 2021
PySAML2 could be made to accept invalid SAML documents.
- Ubuntu 16.04 LTS
CVE ID
8 September 2021
Several security issues were fixed in GD library.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
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