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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171 - 180 of 229 results

USN-4682-1: WavPack vulnerability

6 January 2021

WavPack could be made to execute arbitrary code or crash if it received a specially crafted WAV file.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2020-35738

USN-4677-1: p11-kit vulnerabilities

5 January 2021

Several security issues were fixed in p11-kit.

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

CVE ID

CVE-2020-29362, CVE-2020-29363, CVE-2020-29361

USN-4674-1: Dovecot vulnerabilities

4 January 2021

Several security issues were fixed in Dovecot.

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

CVE ID

CVE-2020-24386, CVE-2020-25275

USN-4668-3: python-apt regression

4 January 2021

USN-4668-1 introduced a regression in python-apt.

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

USN-4673-1: libproxy vulnerability

4 January 2021

libproxy could be made to crash or execute arbitrary code if it received a specially crafted file.

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

CVE ID

CVE-2020-26154

USN-4671-1: Firefox vulnerabilities

15 December 2020

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

CVE ID

CVE-2020-26971, CVE-2020-26973, CVE-2020-26978 + 8 others

USN-4670-1: ImageMagick vulnerabilities

15 December 2020

Several security issues were fixed in ImageMagick.

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

CVE ID

CVE-2019-19949, CVE-2020-27560, CVE-2019-19948

USN-4659-2: Linux kernel regression

13 December 2020

USN-4659-1 introduced a regression in the Linux kernel.

  • Ubuntu 20.10

USN-4666-2: lxml vulnerability

11 December 2020

lxml could allow cross-site scripting (XSS) attacks.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-27783

USN-4668-2: python-apt regression

10 December 2020

USN-4668-1 introduced a regression in python-apt.

  • Ubuntu 20.10
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