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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7 October 2020

Spice could be made to crash or run programs if it received specially crafted network traffic.

  • Ubuntu 14.04 LTS

28 September 2020

Several security issues were fixed in Sudo.

  • Ubuntu 14.04 LTS

24 September 2020

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

23 September 2020

Perl DBI module could be made to crash or expose sensitive information if it received a specially crafted input.

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

23 September 2020

Several security issues were fixed in the Linux kernel.

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

17 September 2020

Samba would allow unintended access to files over the network.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2020-1472


17 September 2020

Several security issues were fixed in Perl DBI module.

  • Ubuntu 14.04 LTS

16 September 2020

Perl DBI module could be made to execute arbitrary code if it received a specially manipulated call.

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

9 September 2020

Several security issues were fixed in X.Org X Server.

  • Ubuntu 14.04 LTS

8 September 2020

Several security issues were fixed in libx11.

  • Ubuntu 14.04 LTS,
  • 12.04


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