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-6419-1: jQuery UI vulnerabilities

5 October 2023

Several security issues were fixed in jQuery UI.

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

CVE ID

CVE-2021-41183, CVE-2022-31160, CVE-2021-41184 + 2 others

USN-6413-1: GNU binutils vulnerabilities

4 October 2023

Several security issues were fixed in GNU binutils.

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

CVE ID

CVE-2022-35205, CVE-2022-47007, CVE-2018-20671 + 7 others

USN-6411-1: Exim vulnerabilities

4 October 2023

Several security issues were fixed in Exim.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2023-42115, CVE-2023-42114, CVE-2023-42116

USN-6190-2: AccountsService vulnerability

25 September 2023

AccountsService could be made to crash or run programs if it received specially crafted messages.

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

CVE ID

CVE-2023-3297

USN-6360-2: FLAC vulnerability

22 September 2023

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

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

CVE ID

CVE-2020-22219

USN-6393-1: ImageMagick vulnerability

21 September 2023

ImageMagick could be made to crash when processing the -help option.

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

CVE ID

CVE-2022-48541

USN-6388-1: Linux kernel vulnerabilities

19 September 2023

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2023-32269, CVE-2023-4385, CVE-2023-3212 + 6 others

USN-6381-1: GNU binutils vulnerabilities

18 September 2023

Several security issues were fixed in GNU binutils.

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

CVE ID

CVE-2020-19726, CVE-2020-35342, CVE-2022-44840 + 5 others

USN-6373-1: gawk vulnerability

14 September 2023

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

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

CVE ID

CVE-2023-4156

USN-6371-1: libssh2 vulnerability

14 September 2023

libssh2 could be made to crash if it received specially crafted network traffic.

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

CVE ID

CVE-2020-22218

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