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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23 July 2020

Several security issues were fixed in LibVNCServer.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

22 July 2020

Several security issues were fixed in FFmpeg.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

22 July 2020

Pillow could be made to crash if it opened a specially crafted file.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

22 July 2020

Several security issues were fixed in Python.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

22 July 2020

Evolution Data Server could be made to expose sensitive information over the network.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

15 July 2020

An intended access restriction in snapd could be bypassed by strict mode snaps.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS

14 July 2020

A X-Frame-Options bypass was discovered in Firefox.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS

8 July 2020

Several security issues were fixed in Thunderbird.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS

6 July 2020

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

6 July 2020

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS


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