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
1 - 10 of 229 results
21 July 2021
Several security issues were fixed in Ruby.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
21 July 2021
Several security issues were fixed in the NVIDIA graphics drivers.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
20 July 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.10 ,
- 20.04 LTS
CVE ID
CVE-2021-33034, CVE-2021-3506, CVE-2021-33909 + 2 others
20 July 2021
Several security issues were fixed in systemd.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
20 July 2021
containerd could be made to overwrite file permissions.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
16 July 2021
Firefox could be made to crash or run programs as your login if it opened a malicious website.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-29974, CVE-2021-29977, CVE-2021-30547 + 4 others
15 July 2021
Several security issues were fixed in QEMU.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-3594, CVE-2021-3546, CVE-2021-3545 + 18 others
15 July 2021
Several security issues were fixed in libslirp.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS
CVE ID
CVE-2021-3594, CVE-2021-3593, CVE-2020-29130 + 3 others
7 July 2021
Several security issues were fixed in Avahi.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
7 July 2021
libuv could be made to crash or expose sensitive information if it received a specially crafted input.
- Ubuntu 21.04 ,
- 20.10 ,
- 20.04 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.