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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6 - 15 of 203 results

USN-5509-1: Dovecot vulnerability

11 July 2022

Dovecot could allow unintended access to network services.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-30550

USN-5506-1: NSS vulnerabilities

7 July 2022

Several security issues were fixed in NSS.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-22747, CVE-2022-34480

USN-5504-1: Firefox vulnerabilities

5 July 2022

Firefox could be made to crash or run programs as your login if it opened a malicious website.

  • Ubuntu 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-34471, CVE-2022-34475, CVE-2022-34470 + 14 others

USN-5503-1: GnuPG vulnerability

5 July 2022

GnuPG could allow forged signatures.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-34903

USN-5502-1: OpenSSL vulnerability

5 July 2022

OpenSSL could be made to expose sensitive information over the network.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-2097

USN-5501-1: Django vulnerability

4 July 2022

Django could be made to expose sensitive information if it received a specially crafted input.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-34265

USN-5496-1: cloud-init vulnerability

29 June 2022

cloud-init could be made to expose sensitive information.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-2084

USN-5495-1: curl vulnerabilities

27 June 2022

Several security issues were fixed in curl.

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2022-32207, CVE-2022-32206, CVE-2022-32205 + 1 other

USN-5493-1: Linux kernel vulnerability

27 June 2022

The system could be made to crash under certain conditions.

  • Ubuntu 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2022-28388

USN-5491-1: Squid vulnerability

22 June 2022

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

  • Ubuntu 22.04 LTS,
  • 21.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-46784

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