CVE-2021-23975 | BDVDB-2026-149757 Detail

MozillaFirefox

Description#

The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof function, instead of using the API method that checks for invalid pointers. This vulnerability affects Firefox < 86.

Impact#

No impact statement in the source data.

Weaknesses#

No weakness recorded in the source data.

References#

https://www.mozilla.org/security/advisories/mfsa2021-07/
https://bugzilla.mozilla.org/show_bug.cgi?id=1685145
https://security.gentoo.org/glsa/202104-10

Exploit#

No public exploit known

History#

Version 12021-02-26Record published in the CVE List.
Version 22024-08-03Most recent update recorded in the CVE List.