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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16 October 2017

Several security issues were fixed in wpa_supplicant.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

12 October 2017

Several security issues were fixed in the X.Org X server.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

11 October 2017

Several security issues were fixed in Open vSwitch.

  • Ubuntu 17.04 ,
  • 16.04 LTS

11 October 2017

Several security issues were fixed in Thunderbird.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

10 October 2017

Several security issues were fixed in the Linux kernel.

  • Ubuntu 17.04

10 October 2017

Several security issues were fixed in libXfont.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

10 October 2017

Several security issues were fixed in curl.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

6 October 2017

Several security issues were fixed in poppler.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

5 October 2017

Git be made to run programs if it processed a specially crafted file.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS

4 October 2017

USN-3435-1 caused a regression in Firefox.

  • Ubuntu 17.04 ,
  • 16.04 LTS,
  • 14.04 LTS


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