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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USN-3768-1: Ghostscript vulnerabilities

19 September 2018

Several security issues were fixed in Ghostscript.

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

CVE ID

CVE-2018-11645, CVE-2018-15908, CVE-2018-15909 + 13 others

USN-3767-1: GLib vulnerabilities

19 September 2018

Several security issues were fixed in GLib.

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

CVE ID

CVE-2018-16428, CVE-2018-16429

USN-3766-1: PHP vulnerabilities

18 September 2018

Several security issues were fixed in PHP.

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

CVE ID

CVE-2015-9253, CVE-2018-14851, CVE-2018-14883

USN-3722-5: ClamAV regression

18 September 2018

USN-3722-1 introduced a regression in ClamAV.

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

USN-3761-3: Firefox regressions

17 September 2018

USN-3761-1 caused several regressions in Firefox.

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

USN-3765-1: curl vulnerability

17 September 2018

curl could be made to run arbitrary code if it received a specially crafted input.

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

CVE ID

CVE-2018-14618

USN-3761-2: Firefox regressions

13 September 2018

USN-3761-1 caused several regressions in Firefox.

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

USN-3764-1: Zsh vulnerabilities

11 September 2018

Zsh could be made to execute arbitrary code if it received a specially crafted script.

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

CVE ID

CVE-2018-0502, CVE-2018-1100, CVE-2018-13259

USN-3761-1: Firefox vulnerabilities

6 September 2018

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

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

CVE ID

CVE-2018-12375, CVE-2018-12376, CVE-2018-12377 + 2 others

USN-3760-1: transfig vulnerability

6 September 2018

transfig could be made to execute arbitrary code if it received a specially crafted FIG file.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2018-16140

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