Ubuntu Security Update USN-4317-1: Firefox vulnerabilities

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firefox vulnerabilities


A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
Summary


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

Software Description

  • firefox - Mozilla Open Source web browser
Details


Two use-after-free bugs were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit these to cause a denial of service or execute arbitrary code.

Update instructions


The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.10
firefox - 74.0.1+build1-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
firefox - 74.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
firefox - 74.0.1+build1-0ubuntu0.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart Firefox to make all the necessary changes.

References


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