CVE-2024-4774

critical

Description

The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

References

https://www.mozilla.org/security/advisories/mfsa2024-21/

https://bugzilla.mozilla.org/show_bug.cgi?id=1886598

Details

Source: Mitre, NVD

Published: 2024-05-14

Updated: 2024-05-14

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical