#VU64941 Double Free in ultrajson - CVE-2022-31117

Vulnerability identifier: #VU64941

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-31117

CWE-ID: CWE-415

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ultrajson
Other software / Other software solutions

Vendor: ultrajson

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when decoding untrusted input. A remote attacker can pass specially crafted data to the application, trigger double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ultrajson: 1.19 - 5.3.0

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External links
https://github.com/ultrajson/ultrajson/security/advisories/GHSA-fm67-cv37-96ff
https://github.com/ultrajson/ultrajson/commit/9c20de0f77b391093967e25d01fb48671104b15b

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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.