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CVE-2021-23954

Published: Feb 26, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Vendor	Product	Versions
Mozilla	Firefox	affected `< 85`
Mozilla	Thunderbird	affected `< 78.7`
Mozilla	Firefox ESR	affected `< 78.7`

References

https://www.mozilla.org/security/advisories/mfsa2021-03/

x_refsource_MISC

https://www.mozilla.org/security/advisories/mfsa2021-04/

x_refsource_MISC

https://www.mozilla.org/security/advisories/mfsa2021-05/

x_refsource_MISC

https://bugzilla.mozilla.org/show_bug.cgi?id=1684020

x_refsource_MISC

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