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
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