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-6129-1: Avahi vulnerability

1 June 2023

Avahi could be made to crash if it received specially crafted DBus traffic.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-1981

USN-6128-1: CUPS vulnerability

1 June 2023

CUPS could be made to crash or run programs if it received specially crafted network traffic.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-32324

USN-6127-1: Linux kernel vulnerabilities

31 May 2023

Several security issues were fixed in the Linux kernel.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-32233, CVE-2023-1380, CVE-2023-2612 + 2 others

USN-6126-1: libvirt vulnerabilities

31 May 2023

Several security issues were fixed in libvirt.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS

CVE ID

CVE-2022-0897, CVE-2023-2700

USN-6125-1: snapd vulnerability

31 May 2023

An intended access restriction in snapd could be bypassed by strict mode snaps.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2023-1523

USN-6120-1: SpiderMonkey vulnerabilities

30 May 2023

Several security issues were fixed in SpiderMonkey.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-29535, CVE-2023-29536, CVE-2023-25739 + 6 others

USN-6117-1: Apache Batik vulnerabilities

30 May 2023

Several security issues were fixed in Apache Batik.

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

CVE ID

CVE-2022-40146, CVE-2020-11987, CVE-2022-41704 + 4 others

USN-6119-1: OpenSSL vulnerabilities

30 May 2023

Several security issues were fixed in OpenSSL.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-1255, CVE-2023-2650

USN-6115-1: TeX Live vulnerability

30 May 2023

LuaTeX (TeX Live) could be made to run programs as your login if it compiled a specially crafted TeX file.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-32700

USN-6116-1: hawk vulnerability

30 May 2023

hawk could be made to crash if it opened a specially crafted file.

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

CVE ID

CVE-2022-29167

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