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

91 - 100 of 229 results

29 March 2021

Several security issues were fixed in Squid.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

29 March 2021

Several security issues were fixed in WebKitGTK.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

25 March 2021

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

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

25 March 2021

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

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-3449


24 March 2021

Several security issues were fixed in ldb.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

23 March 2021

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

22 March 2021

Several security issues were fixed in Privoxy.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

22 March 2021

pygments could be made to hang if it opened a specially crafted file.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

18 March 2021

Several security issues were fixed in Ruby.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS

17 March 2021

The system could be made to expose sensitive information.

  • Ubuntu 20.10 ,
  • 20.04 LTS


Resources


Further reading

  • Loading...

Canonical is offering
Expanded Security Maintenance

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