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-6926-3: Linux kernel (Azure) vulnerabilities

9 August 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS

CVE ID

CVE-2024-35982, CVE-2024-25739, CVE-2024-26923 + 27 others

USN-6948-1: Salt vulnerabilities

8 August 2024

Several security issues were fixed in Salt.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2020-16846, CVE-2020-25592, CVE-2020-28972 + 9 others

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-6943-1: Tomcat vulnerabilities

1 August 2024

Several security issues were fixed in Tomcat.

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

CVE ID

CVE-2020-9484, CVE-2021-41079, CVE-2022-29885 + 2 others

USN-6942-1: Gross vulnerability

1 August 2024

Gross could be made to crash or to allow arbitary code execution.

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

CVE ID

CVE-2023-52159

USN-6939-1: Exim vulnerability

31 July 2024

Exim could be made to bypass a MIME filename extension-blocking protection mechanism if it received specially crafted input.

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

CVE ID

CVE-2024-39929

USN-6913-2: phpCAS vulnerability

31 July 2024

phpCAS was vulnerable to an authentication bypass.

  • Ubuntu 16.04 LTS

CVE ID

CVE-2022-39369

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-6926-1: Linux kernel vulnerabilities

29 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2024-26882, CVE-2024-24858, CVE-2024-24859 + 27 others

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