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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18 July 2022

HTTP-Daemon could allow HTTP Request Smuggling attacks.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

18 July 2022

Several security issues were fixed in 389 Directory Server.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

15 July 2022

Several security issues were fixed in containerd.

  • Ubuntu 16.04 LTS

14 July 2022

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

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

13 July 2022

Several security issues were fixed in Vim.

  • Ubuntu 16.04 LTS

13 July 2022

The CA certificates in the ca-certificates package were updated.

  • Ubuntu 16.04 LTS

13 July 2022

Several security issues were fixed in the Linux kernel.

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

12 July 2022

Several security issues were fixed in X.Org X Server.

  • Ubuntu 16.04 LTS

12 July 2022

GnuPG could allow forged signatures.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

8 July 2022

Composer could be made to run programs if it received specially crafted URL values.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS


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