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.

Subscribe for updates  

Mailing list Atom RSS

Search USNs

USN ID, name, description or CVE ID contains

Filter by Ubuntu release

141 - 150 of 2338 results

USN-6866-2: Linux kernel (Azure) vulnerabilities

4 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2021-33631, CVE-2021-47063, CVE-2023-52615 + 9 others

USN-6876-1: Kopano Core vulnerabilities

4 July 2024

Several security issues were fixed in Kopano Core.

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

CVE ID

CVE-2019-19907, CVE-2022-26562

USN-6868-1: Linux kernel vulnerabilities

3 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2024-26643, CVE-2024-26925, CVE-2024-2201

USN-6866-1: Linux kernel vulnerabilities

3 July 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2021-33631, CVE-2024-26898, CVE-2021-47063 + 9 others

USN-6305-3: PHP regression

3 July 2024

USN-6305-2 caused a regression in parsing XML.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

USN-6858-1: eSpeak NG vulnerabilities

1 July 2024

Several security issues were fixed in eSpeak NG.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-49991, CVE-2023-49994, CVE-2023-49990 + 2 others

USN-6844-2: CUPS regression

28 June 2024

USN-6844-1 caused the cupsd daemon to never start

  • Ubuntu 24.04 LTS,
  • 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

USN-6855-1: libcdio vulnerability

28 June 2024

libcdio could be made to crash or run programs as your login if it opened a specially crafted file.

  • Ubuntu 24.04 LTS,
  • 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-36600

USN-6857-1: Squid vulnerabilities

27 June 2024

Several security issues were fixed in Squid.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2023-49286, CVE-2023-49285, CVE-2024-25617 + 3 others

USN-6852-2: Wget vulnerability

27 June 2024

Wget could be made to connect to a different host than expected.

  • Ubuntu 18.04 LTS,
  • 16.04 LTS

CVE ID

CVE-2024-38428

  1. Previous page
  2. 13
  3. 14
  4. 15
  5. 16
  6. 17
  7. Next page

Resources

Join the discussion

Further reading

Canonical is offering
Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›