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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101 - 110 of 266 results

USN-6427-1: .NET vulnerability

10 October 2023

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

  • Ubuntu 23.04 ,
  • 22.04 LTS

CVE ID

CVE-2023-44487

USN-6426-1: WebKitGTK vulnerabilities

10 October 2023

Several security issues were fixed in WebKitGTK.

  • Ubuntu 23.04 ,
  • 22.04 LTS

CVE ID

CVE-2023-41993, CVE-2023-39928, CVE-2023-41074

USN-6425-1: Samba vulnerabilities

10 October 2023

Several security issues were fixed in Samba.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-4091, CVE-2023-42670, CVE-2023-42669 + 1 other

USN-6423-1: CUE vulnerability

9 October 2023

CUE could be made to execute arbitrary code if it received a specially crafted file.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-43641

USN-6422-1: Ring vulnerabilities

9 October 2023

Several security issues were fixed in Ring.

  • Ubuntu 23.04 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-37706, CVE-2022-39244, CVE-2022-31031 + 17 others

USN-6412-1: Linux kernel vulnerabilities

5 October 2023

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.04 ,
  • 22.04 LTS

CVE ID

CVE-2023-38427, CVE-2023-4273, CVE-2023-1206 + 10 others

USN-6414-1: Django vulnerability

4 October 2023

Django could be made to consume resources or crash if it received specially crafted network traffic.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-43665

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-6401-1: FreeRDP vulnerabilities

4 October 2023

Several security issues were fixed in FreeRDP.

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

CVE ID

CVE-2023-39351, CVE-2023-40186, CVE-2023-40569 + 7 others

USN-6410-1: GRUB2 vulnerabilities

4 October 2023

Several security issues were fixed in GRUB2.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-4692, CVE-2023-4693

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