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-5237-1: MediaInfoLib vulnerabilities

1 August 2022

MediaInfoLib could be made to crash if it opened a specially crafted file.

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

CVE ID

CVE-2020-15395, CVE-2020-26797

USN-5540-1: Linux kernel vulnerabilities

29 July 2022

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2022-20141, CVE-2022-25258, CVE-2022-34918 + 1 other

USN-5251-1: GEGL vulnerability

27 July 2022

GEGL could be made to run programs if it received specially crafted input.

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

CVE ID

CVE-2021-45463

USN-5532-2: Bottle vulnerability

26 July 2022

Bottle could be made to leak sensitive information if it received a specially crafted request

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2022-31799

USN-5272-1: HDF5 vulnerabilities

20 July 2022

HDF5 could be made to crash if it opened a specially crafted file.

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

CVE ID

CVE-2018-17233, CVE-2018-17237, CVE-2018-17234

USN-5523-1: LibTIFF vulnerabilities

19 July 2022

Several security issues were fixed in LibTIFF.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2020-19144, CVE-2020-19131, CVE-2022-0909 + 4 others

USN-5256-2: uriparser vulnerabilities

18 July 2022

uriparser could be made to crash if it received specially crafted input.

  • Ubuntu 20.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-46142, CVE-2021-46141

USN-5520-2: HTTP-Daemon vulnerability

18 July 2022

HTTP-Daemon could allow HTTP Request Smuggling attacks.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2022-31081

USN-5519-1: Python vulnerability

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

CVE ID

CVE-2015-20107

USN-5515-1: Linux kernel vulnerabilities

13 July 2022

Several security issues were fixed in the Linux kernel.

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

CVE ID

CVE-2022-1199, CVE-2022-1205, CVE-2021-4197 + 7 others

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