CVE-2024-4420 MEDIUM

CVE-2024-4420: Denial of Service in Tink-cc

Vendor Google
Product Tink
Weakness CWE-116
Published May 21, 2024
Last update August 1, 2024

CVSS base score

6.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/S:N/AU:Y/V:D/RE:L/U:Green

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

May 21, 2024 CVE published
August 1, 2024 Record updated