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.

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11 - 20 of 178 results

11 January 2022

Several security issues were fixed in Apache Log4j 2.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS,
  • 18.04 LTS

11 January 2022

USN-5043-1 introduced a regression in Exiv2.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS

11 January 2022

The system could be made to crash or run programs as an administrator.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS

CVE ID

CVE-2021-4204


6 January 2022

Several security issues were fixed in WebKitGTK.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS

6 January 2022

Several security issues were fixed in Apache HTTP Server.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS,
  • 18.04 LTS

6 January 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS

5 January 2022

Several security issues were fixed in Django.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS,
  • 18.04 LTS

20 December 2021

USN-5186-1 caused some minor regressions in Firefox.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS,
  • 18.04 LTS

19 December 2021

Apache Log4j 2 could be made to crash if it received specially crafted input.

  • Ubuntu 21.10 ,
  • 21.04 ,
  • 20.04 LTS

17 December 2021

Python could be made to crash if it receives specially crafted input from a malicious server.

  • Ubuntu 21.04 ,
  • 20.04 LTS

CVE ID

CVE-2021-3737



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