Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-21234

Deserialization of Untrusted Data

Published: May 21, 2020 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-21234
CWEhttps://cwe.mitre.org/data/definitions/502.html

Jodd before 5.0.4 performs Deserialization of Untrusted JSON Data when setClassMetadataName is set.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Jodd Jodd * 5.0.4 (excluding)
Jodd Ubuntu eoan *
Jodd Ubuntu focal *
Jodd Ubuntu groovy *
Jodd Ubuntu hirsute *
Jodd Ubuntu impish *
Jodd Ubuntu kinetic *
Jodd Ubuntu trusty *

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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