Incorrect Conversion between Numeric Types Affecting firefox package, versions <88.0-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-ALPINE318-FIREFOX-5513976
  • published22 Apr 2021
  • disclosed24 Jun 2021

Introduced: 22 Apr 2021

CVE-2021-23997  (opens in a new tab)
CWE-681  (opens in a new tab)

How to fix?

Upgrade Alpine:3.18 firefox to version 88.0-r0 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 Alpine. See How to fix? for Alpine:3.18 relevant fixed versions and status.

Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

CVSS Scores

version 3.1