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
781 - 790 of 2375 results
6 January 2021
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2020-25668, CVE-2020-4788, CVE-2019-0148 + 3 others
4 January 2021
Dovecot could be made to denial of service if it received a specially crafted MIME.
- Ubuntu 14.04 LTS
CVE ID
16 December 2020
Several security issues were fixed in unzip.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS,
- 12.04
CVE ID
CVE-2018-1000035, CVE-2018-18384, CVE-2014-9913 + 2 others
11 December 2020
lxml could allow cross-site scripting (XSS) attacks.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS,
- 12.04
CVE ID
9 December 2020
Several security issues were fixed in curl.
- Ubuntu 14.04 LTS,
- 12.04
CVE ID
9 December 2020
lxml could allow cross-site scripting (XSS) attacks.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS,
- 12.04
CVE ID
7 December 2020
Several security issues were fixed in X.Org X Server.
- Ubuntu 14.04 LTS
CVE ID
3 December 2020
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2020-14351, CVE-2020-25643, CVE-2020-25284 + 7 others
2 December 2020
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2020-14351, CVE-2020-25284, CVE-2020-25211 + 9 others
23 November 2020
OpenLDAP could be made to crash if it received specially crafted network traffic.
- Ubuntu 14.04 LTS,
- 12.04
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.