CVE-2024-3855

critical

Description

In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.

References

https://www.mozilla.org/security/advisories/mfsa2024-18/

https://bugzilla.mozilla.org/show_bug.cgi?id=1885828

Details

Source: Mitre, NVD

Published: 2024-04-16

Updated: 2024-04-17

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