A vulnerability, which was classified as problematic, has been found in Mozilla Firefox up to 123. Affected by this issue is an unknown code block of the component QUIC ACK Frame Decoder. The manipulation with an unknown input leads to a memory allocation vulnerability. Using CWE to declare the problem leads to CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. Impacted is availability. CVE summarizes:

Data was not properly sanitized when decoding a QUIC ACK frame; this could have led to unrestricted memory consumption and a crash. This vulnerability affects Firefox < 124.

The advisory is shared for download at mozilla.org. This vulnerability is handled as CVE-2024-2613 since 03/18/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/19/2024).

Upgrading to version 124 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

Entries connected to this vulnerability are available at VDB-257261, VDB-257262, VDB-257263 and VDB-257264.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 123

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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