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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171 - 180 of 235 results

1 July 2019

znc could be made to crash or run programs as an administrator if it opened a specially crafted file.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

1 July 2019

Several security issues were fixed in Django.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

29 June 2019

Several security issues were fixed in the Linux kernel.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

27 June 2019

Several security issues were fixed in poppler.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

26 June 2019

Expat could be made to consume a high amount of RAM and CPU resources if it received a specially crafted XML file.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

26 June 2019

Several security issues were fixed in bzip2.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

25 June 2019

A security improvement has been made to policykit-desktop-privileges.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

25 June 2019

Several security issues were fixed in Ceph.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 16.04 LTS

25 June 2019

Several security issues were fixed in ImageMagick.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

24 June 2019

libmysofa could be made to crash if it received specially crafted input.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS


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