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
191 - 200 of 203 results
11 November 2021
Several security issues were fixed in Samba.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS
CVE ID
CVE-2020-25721, CVE-2021-3738, CVE-2020-25717 + 6 others
9 November 2021
Docker could be made to expose sensitive information over the network.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
9 November 2021
The system could be made to crash under certain conditions.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS
CVE ID
3 November 2021
Several security issues were fixed in Thunderbird.
- Ubuntu 21.10
CVE ID
CVE-2021-38500, CVE-2021-38501, CVE-2021-38496 + 3 others
3 November 2021
Firefox could be made to crash or run programs as your login if it opened a malicious website.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-38507, CVE-2021-38509, CVE-2021-38508 + 3 others
1 November 2021
Several security issues were fixed in WebKitGTK.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS
CVE ID
28 October 2021
Bind could be made to consume resources if it received specially crafted network traffic.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
27 October 2021
PHP-PFM in PHP could be made to run program as an administrator if it received specially crafted input.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
26 October 2021
Several security issues were fixed in libslirp.
- Ubuntu 21.10
CVE ID
CVE-2021-3593, CVE-2021-3595, CVE-2021-3594 + 1 other
25 October 2021
Several security issues were fixed in MySQL.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-35602, CVE-2021-35634, CVE-2021-35643 + 40 others
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