#VU64152 Deserialization of Untrusted Data in Gson - CVE-2022-25647

Vulnerability identifier: #VU64152

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-2022-25647

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gson
Web applications / JS libraries

Vendor: Google

Description

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

The vulnerability exists due to insecure input validation when processing serialized data passed to writeReplace() method. A remote attacker can pass specially crafted data to the application and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gson: 2.0 - 2.8.8

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External links
http://github.com/google/gson/pull/1991

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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.