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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24 October 2018

Several security issues were fixed in audiofile.

  • Ubuntu 14.04 LTS

23 October 2018

Several security issues were fixed in MySQL.

  • Ubuntu 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

23 October 2018

Several security issues were fixed in the Linux kernel.

  • Ubuntu 14.04 LTS

23 October 2018

Several security issues were fixed in the Linux kernel.

  • Ubuntu 14.04 LTS

17 October 2018

Paramiko could allow unintended access to network services.

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

17 October 2018

libssh could allow unintended access to network services.

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

16 October 2018

MoinMoin could be made to expose sensitive information if it received a specially crafted input.

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

CVE ID

CVE-2017-5934


15 October 2018

Several security issues were fixed in Thunderbird.

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

15 October 2018

Net-SNMP could be made to crash if it received specially crafted network traffic.

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

15 October 2018

Requests could be made to expose sensitive information if it received a specially crafted HTTP header.

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


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