Improper Check for Unusual or Exceptional Conditions Affecting mozilla package, versions [,78.1)(78.1,79.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2378843
  • published26 Jan 2022
  • disclosed10 Aug 2020
  • creditUnknown

Introduced: 10 Aug 2020

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

How to fix?

Upgrade mozilla to version 78.1, 79.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions. 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