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-6947-1: Kerberos vulnerabilities

8 August 2024

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

  • Ubuntu 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-37371, CVE-2024-37370

USN-6945-1: wpa_supplicant and hostapd vulnerability

6 August 2024

wpa_supplicant could be made to run programs as an administrator with specially crafted configuration file.

  • Ubuntu 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-5290

USN-6926-2: Linux kernel vulnerabilities

1 August 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-35997, CVE-2024-36902, CVE-2023-52620 + 27 others

USN-6936-1: Apache Commons Collections vulnerability

31 July 2024

Apache Commons Collections could be made to execute arbitrary code if it received specially crafted input.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2015-4852

USN-6938-1: Linux kernel vulnerabilities

31 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-47194, CVE-2023-52444, CVE-2024-26934 + 28 others

USN-6925-1: Linux kernel vulnerability

29 July 2024

Several security issues were fixed in Linux kernel.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2024-26882

USN-6908-1: Tomcat vulnerabilities

23 July 2024

Several security issues were fixed in Tomcat.

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

CVE ID

CVE-2021-25329, CVE-2020-9484, CVE-2019-0221

USN-6905-1: Rack vulnerabilities

23 July 2024

Rack could be made to consume resources and cause long delays if it processed certain input.

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

CVE ID

CVE-2023-27530, CVE-2023-27539

LSN-0105-1: Kernel Live Patch Security Notice

16 July 2024

Several security issues were fixed in the kernel.

  • Ubuntu 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2023-7192, CVE-2024-26642, CVE-2023-6270 + 2 others

USN-6891-1: Python vulnerabilities

11 July 2024

Several security issues were fixed in Python.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-29921, CVE-2021-3733, CVE-2022-48560 + 38 others

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