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

11 - 20 of 266 results

USN-6580-1: w3m vulnerability

15 January 2024

w3m could be made to crash or run programs as your login if it opened a malicious website.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2023-4255

USN-6578-1: .NET vulnerabilities

11 January 2024

Several security issues were fixed in dotnet6, dotnet7, and dotnet8.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS

CVE ID

CVE-2024-0057, CVE-2024-21319

USN-6574-1: Go vulnerabilities

11 January 2024

Several security issues were fixed in Go.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-39326, CVE-2023-39323, CVE-2023-45285 + 4 others

USN-6575-1: Twisted vulnerabilities

10 January 2024

Several security issues were fixed in Twisted.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2022-39348, CVE-2023-46137

USN-6569-1: libclamunrar vulnerabilities

8 January 2024

Several security issues were fixed in libclamunrar.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2022-30333, CVE-2023-40477

USN-6568-1: ClamAV update

8 January 2024

ClamAV was updated to remain compatible with signature database downloads.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

USN-6567-1: QEMU vulnerabilities

8 January 2024

Several security issues were fixed in QEMU.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-1544, CVE-2023-3354, CVE-2023-3301 + 11 others

USN-6566-1: SQLite vulnerabilities

3 January 2024

Several security issues were fixed in SQLite.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2022-46908, CVE-2023-7104

USN-6565-1: OpenSSH vulnerabilities

3 January 2024

Several security issues were fixed in OpenSSH.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2021-41617, CVE-2023-51384, CVE-2023-51385

USN-6563-1: Thunderbird vulnerabilities

2 January 2024

Several security issues were fixed in Thunderbird.

  • Ubuntu 23.10 ,
  • 23.04 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-6859, CVE-2023-6860, CVE-2023-6863 + 8 others

  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 ›