CVE-2024-9399: firefox — Fix

Description

A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-404 CWE-404

Affected Products

Vendor	Product	Versions
mozilla	firefox	< 128.3.0
mozilla	firefox	129.0 — 131.0
mozilla	thunderbird	< 128.3.0
mozilla	thunderbird	129.0 — 131.0

References

Advisories & Patches

https://www.mozilla.org/security/advisories/mfsa2024-46/ https://www.mozilla.org/security/advisories/mfsa2024-47/ https://www.mozilla.org/security/advisories/mfsa2024-49/ https://www.mozilla.org/security/advisories/mfsa2024-50/

Other References

https://bugzilla.mozilla.org/show_bug.cgi?id=1907726

Frequently Asked Questions

What is CVE-2024-9399? +

A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-9399? +

CVE-2024-9399 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-9399? +

CVE-2024-9399 affects products from mozilla, specifically: firefox, thunderbird. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-9399? +

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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