CVE-2024-4420 Information

Description

There exists a Denial of service vulnerability in Tink-cc in versions prior to 2.1.3.  An adversary can crash binaries using the crypto::tink::JsonKeysetReader in tink-cc by providing an input that is not an encoded JSON object but still a valid encoded JSON element for example a number or an array. This will crash as Tink just assumes any valid JSON input will contain an object.

An adversary can crash binaries using the crypto::tink::JsonKeysetReader in tink-cc by providing an input containing many nested JSON objects. This may result in a stack overflow.

We recommend upgrading to version 2.1.3 or above

Reference

https://github.com/tink-crypto/tink-cc/issues/4