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-5672-2: GMP vulnerability

6 March 2023

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

  • Ubuntu 14.04 LTS

CVE ID

CVE-2021-43618

USN-5916-1: Linux kernel vulnerability

3 March 2023

The system could be made to crash or run programs as an administrator.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2022-42703

USN-5910-1: Rack vulnerabilities

2 March 2023

Several security issues were fixed in Rack.

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

CVE ID

CVE-2022-44571, CVE-2022-44572, CVE-2022-44570

USN-5821-4: pip regression

2 March 2023

USN-5821-3 caused a minor regression in pip.

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

USN-5904-1: SoX vulnerabilities

2 March 2023

Several security issues were fixed in SoX.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-3643, CVE-2021-23172, CVE-2021-23159 + 6 others

USN-5810-4: Git vulnerabilities

1 March 2023

Several security issues were fixed in Git.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2022-23521, CVE-2022-41903

USN-5900-1: tar vulnerability

28 February 2023

tar could be made to crash or expose sensitive information if it received a specially crafted file.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2022-48303

USN-5638-4: Expat vulnerabilities

28 February 2023

Expat could be made to crash or execute arbitrary code.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2022-40674, CVE-2022-43680

USN-5821-3: pip regression

28 February 2023

USN-5821-1 caused a regression in pip.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2022-40898

USN-5894-1: curl vulnerabilities

27 February 2023

Several security issues were fixed in curl.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-22925, CVE-2021-22898, CVE-2022-43552

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