PT-2024-3433 · Mozilla+4 · Firefox+4

Lukas Bernhard

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Published

2024-04-15

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Updated

2025-03-14

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CVE-2024-3855

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 125
Description: The issue is related to the JIT component of the Mozilla Firefox browser, which incorrectly optimizes MSubstr operations, leading to out-of-bounds reads. This can allow a remote attacker to disclose protected information.
Recommendations: For versions prior to 125, update to version 125 or later to resolve the issue. As a temporary workaround, consider disabling the JIT compiler until a patch is available. Restrict access to sensitive information to minimize the risk of exploitation.

Exploit

Fix

Out of bounds Read

Buffer Overflow

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Weakness Enumeration

Related Identifiers

ALT-PU-2024-15839
ALT-PU-2024-6765
BDU:2024-03719
CVE-2024-3855
OESA-2025-1265
OESA-2025-1268
OPENSUSE-SU-2024:13907-1
OPENSUSE-SU-2024:14572-1
USN-6747-1
USN-6747-2

Affected Products

Alt Linux
Astra Linux
Firefox
Linuxmint
Ubuntu