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
1641 - 1650 of 2790 results
13 September 2021
Git incorrectly handled certain repository paths.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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
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,
- 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 GD library.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
8 September 2021
mod-auth-mellon could be made to redirect to arbitrary sites.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
8 September 2021
Several security issues were fixed in sssd.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-3621, CVE-2018-10852, CVE-2019-3811 + 1 other
8 September 2021
PySAML2 could be made to accept invalid SAML documents.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
8 September 2021
GNU cpio could be made to crash or run programs if it opened a specially crafted file.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
Resources
Join the discussion
Get up to 15 years of security
maintenance for your new or established systems
Get up to 15 years of security maintenance for your entire Ubuntu Archive. Keep your systems stable with security backporting and avoid forced upgrades.