#VU96575 Improper handling of exceptional conditions in Newtonsoft.Json - CVE-2024-21907

Vulnerability identifier: #VU96575

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-21907

CWE-ID: CWE-755

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Newtonsoft.Json
Web applications / JS libraries

Vendor: JamesNK

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of errors within the JsonConvert.DeserializeObject method. A remote attacker can send specially crafted input and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Newtonsoft.Json: 1.3.1 - 12.0.3

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External links
https://github.com/JamesNK/Newtonsoft.Json/issues/2457
https://github.com/JamesNK/Newtonsoft.Json/pull/2462
https://github.com/JamesNK/Newtonsoft.Json/commit/7e77bbe1beccceac4fc7b174b53abfefac278b66
https://alephsecurity.com/2018/10/22/StackOverflowException/
https://alephsecurity.com/vulns/aleph-2018004
https://security.snyk.io/vuln/SNYK-DOTNET-NEWTONSOFTJSON-2774678
https://github.com/advisories/GHSA-5crp-9r3c-p9vr
https://vulncheck.com/advisories/vc-advisory-GHSA-5crp-9r3c-p9vr

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.