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
531 - 540 of 2295 results
12 January 2022
lxml could be made to execute arbitrary code if it received a specially crafted XML or HTML file.
- Ubuntu 21.10 ,
- 21.04 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
10 January 2022
Several security issues were fixed in Apache HTTP Server.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
6 January 2022
The system could be made to crash or run programs as an administrator.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
6 January 2022
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-4002, CVE-2021-43389, CVE-2021-20321 + 3 others
13 December 2021
GLib could be used to escalate privilege if it received specially crafted input.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
9 December 2021
libmodbus could be made to crash if it received specially crafted input.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
9 December 2021
Several security issues were fixed in uriparser.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2018-19199, CVE-2018-19200, CVE-2018-19198 + 1 other
9 December 2021
Several security issues were fixed in Long Range ZIP.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2018-5747, CVE-2017-8844, CVE-2018-9058 + 7 others
7 December 2021
USN-5168-3 introduced a regression in NSS.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
1 December 2021
NSS could be made to crash or run programs if it verified a specially crafted signature.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
Resources
Join the discussion
Canonical is offering
Expanded Security Maintenance
Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.