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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26 January 2018

The system could be made to crash or run programs as an administrator.

  • Ubuntu 16.04 LTS

25 January 2018

Several security issues were fixed in Libtasn1.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS

24 January 2018

Firefox could be made to crash or run programs as your login if it opened a malicious website.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS

24 January 2018

gcab could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 17.10 ,
  • 16.04 LTS

CVE ID

CVE-2018-5345


23 January 2018

Several security issues were fixed in rsync.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS

23 January 2018

Several security issues were addressed in the Linux kernel.

  • Ubuntu 16.04 LTS

23 January 2018

Several security issues were addressed in the Linux kernel.

  • Ubuntu 16.04 LTS

22 January 2018

Several security issues were fixed in OpenSSH.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS

22 January 2018

Several security issues were fixed in MySQL.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS

22 January 2018

USN-3531-1 introduced regressions in intel-microcode.

  • Ubuntu 17.10 ,
  • 16.04 LTS,
  • 14.04 LTS


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