Mozilla Firefox up to 124 HTTP/2 CONTINUATION Frame resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, was found in Mozilla Firefox up to 124. Affected by this vulnerability is an unknown functionality of the component HTTP2 CONTINUATION Frame Handler. Executing a manipulation can lead to resource consumption. This vulnerability is registered as CVE-2024-3302. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Mozilla Firefox up to 124. This vulnerability affects some unknown functionality of the component HTTP2 CONTINUATION Frame Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125 and Firefox ESR < 115.10.

The advisory is shared for download at bugzilla.mozilla.org. This vulnerability was named CVE-2024-3302 since 04/04/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 208559 (CentOS 7 : firefox (RHSA-2024:1910)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 125 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208559). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 124

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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