Use After Free Affecting mozilla package, versions [,60.5)(60.5,65.0)


Severity

Recommended
0.0
critical
0
10

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

Threat Intelligence

EPSS
9.92% (95th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2378756
  • published26 Jan 2022
  • disclosed5 Feb 2019
  • creditUnknown

Introduced: 5 Feb 2019

CVE-2018-18500  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade mozilla to version 60.5, 65.0 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

CVSS Scores

version 3.1