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

21 - 30 of 2262 results

USN-7348-2: Python regression

24 March 2025

USN-7348-1 introduced a regression in Python.

  • Ubuntu 20.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-0938

USN-7366-1: Rack vulnerabilities

24 March 2025

Several security issues were fixed in Rack.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-27610, CVE-2025-27111, CVE-2025-25184

USN-7365-1: NLTK vulnerabilities

24 March 2025

Several security issues were fixed in NLTK.

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

CVE ID

CVE-2021-43854, CVE-2021-3842

USN-7356-1: uriparser vulnerabilities

19 March 2025

Several security issues were fixed in uriparser.

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

CVE ID

CVE-2024-34403, CVE-2024-34402

USN-7352-2: FreeType vulnerabilities

17 March 2025

Several security issues were fixed in FreeType.

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

CVE ID

CVE-2022-27406, CVE-2025-27363

USN-7344-2: Linux kernel vulnerabilities

13 March 2025

Several security issues were fixed in the Linux kernel.

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

CVE ID

CVE-2024-43893, CVE-2024-26685, CVE-2025-0927 + 36 others

USN-7332-3: Linux kernel vulnerabilities

13 March 2025

Several security issues were fixed in the Linux kernel.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2024-43893, CVE-2024-26685, CVE-2024-41064 + 33 others

USN-7348-1: Python vulnerabilities

12 March 2025

Several security issues were fixed in Python.

  • Ubuntu 20.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2024-9287, CVE-2024-4032, CVE-2024-11168 + 1 other

USN-7347-1: Netatalk vulnerabilities

12 March 2025

Several security issues were fixed in Netatalk.

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

CVE ID

CVE-2024-38441, CVE-2024-38439, CVE-2024-38440

USN-7343-1: Jinja2 vulnerabilities

11 March 2025

Several security issues were fixed in Jinja2.

  • Ubuntu 24.10 ,
  • 24.04 LTS,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2025-27516, CVE-2024-56201, CVE-2024-56326

  1. Previous page
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  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 ›