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Deserialization of untrusted data in jackson-databind

High severity GitHub Reviewed Published Jan 20, 2021 to the GitHub Advisory Database • Updated Mar 15, 2024

Package

maven com.fasterxml.jackson.core:jackson-databind (Maven)

Affected versions

>= 2.7.0, < 2.9.10.7
< 2.6.7.5

Patched versions

2.9.10.7
2.6.7.5

Description

A flaw was found in jackson-databind before 2.9.10.7 and 2.6.7.5. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

Published by the National Vulnerability Database Jan 19, 2021
Reviewed Jan 20, 2021
Published to the GitHub Advisory Database Jan 20, 2021
Last updated Mar 15, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.431%
(75th percentile)

Weaknesses

CVE ID

CVE-2021-20190

GHSA ID

GHSA-5949-rw7g-wx7w

Source code

Credits

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