CVE-2021-23987

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

References

https://www.mozilla.org/security/advisories/mfsa2021-11/

https://www.mozilla.org/security/advisories/mfsa2021-12/

https://www.mozilla.org/security/advisories/mfsa2021-10/

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1513519%2C1683439%2C1690169%2C1690718

Details

Risk Information

CVSS v2

CVSS v3