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-6901-1: stunnel vulnerability

18 July 2024

stunnel could allow unintended access to network services.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-20230

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-6896-2: Linux kernel vulnerabilities

16 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS

CVE ID

CVE-2024-24861, CVE-2024-25739, CVE-2024-26810 + 144 others

USN-6896-1: Linux kernel vulnerabilities

12 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2024-26955, CVE-2024-27437, CVE-2024-26994 + 146 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

USN-6888-2: Django vulnerabilities

11 July 2024

Several security issues were fixed in Django.

  • Ubuntu 18.04 LTS

CVE ID

CVE-2024-39330, CVE-2024-39329, CVE-2024-38875 + 1 other

USN-6868-2: Linux kernel (AWS) vulnerabilities

10 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS

CVE ID

CVE-2024-26925, CVE-2024-2201, CVE-2024-26643

USN-6880-1: Tomcat vulnerability

9 July 2024

Tomcat could allow unintended access to network services.

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

CVE ID

CVE-2022-42252

USN-6881-1: Exim vulnerability

8 July 2024

Exim could be made to allow response injection if it received a specially crafted response.

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

CVE ID

CVE-2021-38371

USN-6879-1: Virtuoso Open-Source Edition vulnerabilities

4 July 2024

Virtuoso Open-Source Edition 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

CVE ID

CVE-2023-48945, CVE-2023-31631, CVE-2023-48951 + 10 others

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