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CVE-2021-23964

Published: Feb 26, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. 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 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/

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

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

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https://bugzilla.mozilla.org/buglist.cgi?bug_id=1662507%2C1666285%2C1673526%2C1674278%2C1674835%2C1675097%2C1675844%2C1675868%2C1677590%2C1677888%2C1680410%2C1681268%2C1682068%2C1682938%2C1683736%2C1685260%2C1685925

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