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

Quick assessment

Affected
Google Tink
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Tink是美国谷歌（Google）公司的一个多语言跨平台的提供加密 API 的一个开发库。 Google Tink 2.1.3 之前版本存在安全漏洞，该漏洞源于 crypto tink JsonKeysetReader 可能会因无效输入而崩溃。

AI Predicted 7.5 Difficulty: Easy EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-4420

Vulnerability Information
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Vulnerability Title
Denial of Service in Tink-cc
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对输出编码和转义不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Google Tink 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Tink是美国谷歌（Google）公司的一个多语言跨平台的提供加密 API 的一个开发库。 Google Tink 2.1.3 之前版本存在安全漏洞，该漏洞源于 crypto tink JsonKeysetReader 可能会因无效输入而崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Tink 2.0.0 ~ 2.1.3 -
Google Tink (Legacy) 0 ~ 1.7.0 -

II. Public POCs for CVE-2024-4420

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III. Intelligence Information for CVE-2024-4420

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Other References for CVE-2024-4420 (1)

IV. Related Vulnerabilities

Same product: Tink
Same vendor: Google
Same weakness: CWE-116

V. Comments for CVE-2024-4420

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