CVE Vulnerabilities

CVE-2019-14439

Deserialization of Untrusted Data

Published: Jul 30, 2019 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Jackson-databind Fasterxml 2.0.0 (including) 2.6.7.3 (excluding)
Jackson-databind Fasterxml 2.7.0 (including) 2.7.9.6 (excluding)
Jackson-databind Fasterxml 2.8.0 (including) 2.8.11.4 (excluding)
Jackson-databind Fasterxml 2.9.0 (including) 2.9.9.2 (excluding)
Red Hat AMQ Streams 1 RedHat jackson-databind *
Red Hat Fuse 7.6.0 RedHat jackson-databind *
Jackson-databind Ubuntu bionic *
Jackson-databind Ubuntu disco *
Jackson-databind Ubuntu esm-apps/bionic *
Jackson-databind Ubuntu esm-apps/xenial *
Jackson-databind Ubuntu trusty *
Jackson-databind Ubuntu trusty/esm *
Jackson-databind Ubuntu xenial *

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