#VU80782 Deserialization of Untrusted Data in Apache Johnzon - CVE-2023-33008

Vulnerability identifier: #VU80782

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33008

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Johnzon
Other software / Other software solutions

Vendor: Apache Foundation

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. A remote attacker can pass specially crafted JSON input that uses large numbers (numbers such as 1e20000000) to the application and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Johnzon: 0.9.4 - 1.2.20

---

External links
https://lists.apache.org/thread/qbg14djo95gfpk7o560lr8wcrzfyw43l

---

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.