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
91 - 100 of 229 results
29 March 2021
Several security issues were fixed in Squid.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
29 March 2021
Several security issues were fixed in WebKitGTK.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-1765, CVE-2020-27918, CVE-2021-1870 + 4 others
25 March 2021
Firefox could be made to crash or run programs as your login if it opened a malicious website.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-23987, CVE-2021-23986, CVE-2021-23985 + 5 others
25 March 2021
OpenSSL could be made to crash if it received specially crafted network traffic.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
24 March 2021
Several security issues were fixed in ldb.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
23 March 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2020-27170, CVE-2021-27364, CVE-2020-27171 + 3 others
22 March 2021
Several security issues were fixed in Privoxy.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-20213, CVE-2021-20215, CVE-2021-20212 + 11 others
22 March 2021
pygments could be made to hang if it opened a specially crafted file.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
18 March 2021
Several security issues were fixed in Ruby.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
17 March 2021
The system could be made to expose sensitive information.
- Ubuntu 20.10 ,
- 20.04 LTS
CVE ID
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