Out-of-bounds Write Affecting mozilla package, versions [,78.12)(78.12,90.0)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.47% (76th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2378356
  • published26 Jan 2022
  • disclosed5 Aug 2021
  • creditUnknown

Introduced: 5 Aug 2021

CVE-2021-29976  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade mozilla to version 78.12, 90.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.

CVSS Scores

version 3.1