Apache Johnzon: Prevent inefficient internal conversion from BigDecimal at large scale
CVE-2023-33008

5.3MEDIUM

Key Information:

Vendor

Apache
Status
Apache Johnzon
Vendor
CVE Published:
7 July 2023

What is CVE-2023-33008?

Deserialization of Untrusted Data vulnerability in Apache Software Foundation Apache Johnzon.

A malicious attacker can craft up some JSON input that uses large numbers (numbers such as 1e20000000) that Apache Johnzon will deserialize into BigDecimal and maybe use numbers too large which may result in a slow conversion (Denial of service risk). Apache Johnzon 1.2.21 mitigates this by setting a scale limit of 1000 (by default) to the BigDecimal.

This issue affects Apache Johnzon: through 1.2.20.

Affected Version(s)

Apache Johnzon 0 <= 1.2.20

References

https://lists.apache.org/thread/qbg14djo95gfpk7o560lr8wcr...
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

PJ Fanning
Jean-Louis Monteiro
Romain Manni-Bucau
.