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-4004-1: Berkeley DB vulnerability

4 June 2019

Berkeley DB could be made to expose sensitive information.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2019-8457

USN-4003-1: Qt vulnerabilities

3 June 2019

Several security issues were fixed in Qt.

  • Ubuntu 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2018-15518, CVE-2018-19870, CVE-2018-19873

USN-4001-1: libseccomp vulnerability

30 May 2019

libseccomp could allow unintended access to system calls.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2019-9893

USN-3999-1: GnuTLS vulnerabilities

30 May 2019

Several security issues were fixed in GnuTLS.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2018-10844, CVE-2018-10845, CVE-2018-10846 + 2 others

USN-3997-1: Thunderbird vulnerabilities

28 May 2019

Several security issues were fixed in Thunderbird.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2018-18511, CVE-2019-11691, CVE-2019-11692 + 10 others

USN-3845-2: FreeRDP vulnerabilities

28 May 2019

Several security issues were fixed in FreeRDP.

  • Ubuntu 18.10 ,
  • 18.04 LTS

CVE ID

CVE-2018-8786, CVE-2018-8787, CVE-2018-8788 + 1 other

USN-3995-1: Keepalived vulnerability

28 May 2019

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

  • Ubuntu 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2018-19115

USN-3994-1: gnome-desktop vulnerability

27 May 2019

gnome-desktop could be made to escape the thumbnailer sandbox.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS

CVE ID

CVE-2019-11460

USN-3977-2: Intel Microcode update

22 May 2019

The system could be made to expose sensitive information.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2018-12126, CVE-2018-12127, CVE-2018-12130 + 1 other

USN-3993-1: curl vulnerabilities

22 May 2019

Several security issues were fixed in curl.

  • Ubuntu 19.04 ,
  • 18.10 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2019-5435, CVE-2019-5436

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