Improper Check for Unusual or Exceptional Conditions Affecting firefox package, versions <80.0.1+build1-0ubuntu1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.23% (61st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2104-FIREFOX-1260104
  • published29 Jul 2020
  • disclosed10 Aug 2020

Introduced: 29 Jul 2020

CVE-2020-15658  (opens in a new tab)
CWE-754  (opens in a new tab)

How to fix?

Upgrade Ubuntu:21.04 firefox to version 80.0.1+build1-0ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:21.04 relevant fixed versions and status.

The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

CVSS Scores

version 3.1