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
711 - 720 of 2300 results
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
17 November 2020
Kerberos could be made to consume unlimited resources if it received specially crafted ASN.1.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
12 November 2020
USN-4628-1 introduced a regression in the Intel Microcode for some processors.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
11 November 2020
OpenLDAP could be made to crash or run programs if it received specially crafted network traffic.
- Ubuntu 14.04 LTS,
- 12.04
CVE ID
11 November 2020
Several security issues were fixed in Intel Microcode.
- Ubuntu 20.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
11 November 2020
The system could be made to expose sensitive information.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS,
- 12.04
CVE ID
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