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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121 - 130 of 266 results

USN-6392-1: libppd vulnerability

20 September 2023

libppd could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 23.04

CVE ID

CVE-2023-4504

USN-6391-1: CUPS vulnerability

20 September 2023

CUPS could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-4504

USN-6390-1: Bind vulnerabilities

20 September 2023

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

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-3341, CVE-2023-4236

USN-6389-1: Indent vulnerability

20 September 2023

Indent could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-40305

USN-6383-1: Linux kernel vulnerabilities

19 September 2023

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.04 ,
  • 22.04 LTS

CVE ID

CVE-2023-40283, CVE-2023-4128, CVE-2023-21264 + 2 others

USN-6378-1: Django vulnerability

18 September 2023

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

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-41164

USN-6375-1: atftp vulnerability

15 September 2023

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

  • Ubuntu 23.04 ,
  • 22.04 LTS

USN-6374-1: Mutt vulnerabilities

14 September 2023

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

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

CVE ID

CVE-2023-4874, CVE-2023-4875

USN-6369-1: libwebp vulnerability

14 September 2023

libwebp could be made to crash or run programs if it opened a specially crafted file.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-4863

USN-6368-1: Thunderbird vulnerabilities

14 September 2023

Several security issues were fixed in Thunderbird.

  • Ubuntu 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-4863, CVE-2023-4574, CVE-2023-4584 + 3 others

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