CVE-2021-23960

State: Published
Severity: Not scored
Published: Feb 26, 2021
Updated: Aug 3, 2024
Reserved: Jan 13, 2021

Description

Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
FirefoxMozilla	< 85Affected
ThunderbirdMozilla	< 78.7Affected
Firefox ESRMozilla	< 78.7Affected

References

https://www.mozilla.org/security/advisories/mfsa2021-03/
https://www.mozilla.org/security/advisories/mfsa2021-04/
https://www.mozilla.org/security/advisories/mfsa2021-05/
https://bugzilla.mozilla.org/show_bug.cgi?id=1675755

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