CVE-2024-4771: firefox Use-After-Free

Description

A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 126.

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CVSS v3.1 Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
mozilla	firefox	< 126.0

References

Advisories & Patches

https://bugzilla.mozilla.org/show_bug.cgi?id=1893891 https://www.mozilla.org/security/advisories/mfsa2024-21/ https://bugzilla.mozilla.org/show_bug.cgi?id=1893891 https://www.mozilla.org/security/advisories/mfsa2024-21/

Exploits

https://bugzilla.mozilla.org/show_bug.cgi?id=1893891 https://bugzilla.mozilla.org/show_bug.cgi?id=1893891

Frequently Asked Questions

What is CVE-2024-4771? +

A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 126. It has a CVSS v3.1 base score of 8.6 (HIGH).

How severe is CVE-2024-4771? +

CVE-2024-4771 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-4771? +

CVE-2024-4771 affects products from mozilla, specifically: firefox. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-4771? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-4771