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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8 October 2019

Unbound could be made to crash if it received a specially crafted NOTIFY query.

  • Ubuntu 19.04

7 October 2019

Several security issues were fixed in OpenEXR.

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

4 October 2019

Several security issues were fixed in the Linux kernel.

  • Ubuntu 19.04 ,
  • 18.04 LTS

2 October 2019

Several security issues were fixed in ClamAV.

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

30 September 2019

SDL 2.0 could be made to crash or run programs as your login if it opened a specially crafted file.

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

30 September 2019

e2fsprogs could be made to execute arbitrary code if it is running in a crafted ext4 partition.

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2019-5094


28 September 2019

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

  • Ubuntu 19.04

25 September 2019

Firefox could be made to hijack the mouse pointer it if opened a malicious website.

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

24 September 2019

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

  • Ubuntu 19.04 ,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2019-9854


23 September 2019

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

  • Ubuntu 19.04


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