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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17 November 2020

Kerberos could be made to consume unlimited resources if it received specially crafted ASN.1.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

12 November 2020

USN-4628-1 introduced a regression in the Intel Microcode for some processors.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

11 November 2020

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

  • Ubuntu 14.04 LTS,
  • 12.04

11 November 2020

Several security issues were fixed in Intel Microcode.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

11 November 2020

The system could be made to expose sensitive information.

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

CVE ID

CVE-2020-8694


10 November 2020

libexif could be made to execute arbitrary code if it received a specially crafted input.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-0452


4 November 2020

Several security issues were fixed in AccountsService.

  • Ubuntu 14.04 LTS

27 October 2020

Several security issues were fixed in Perl.

  • Ubuntu 14.04 LTS,
  • 12.04

22 October 2020

FreeType could be made to crash or run programs as your login if it opened a specially crafted file.

  • Ubuntu 14.04 LTS

14 October 2020

Several security issues were fixed in PHP.

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


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