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CVE-2019-17531

Published: 12 October 2019

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload.

From the Ubuntu Security Team

It was discovered that Jackson Databind incorrectly handled deserialization. An attacker could possibly use this issue to execute arbitrary code or other unspecified impact.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
jackson-databind
Launchpad, Ubuntu, Debian
impish Not vulnerable
(2.10.1-1)
groovy Not vulnerable
(2.10.1-1)
hirsute Not vulnerable
(2.10.1-1)
jammy Not vulnerable
(2.10.1-1)
xenial
Released (2.4.2-3ubuntu0.1~esm2)
Available with Ubuntu Pro
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(2.10.1-1)
kinetic Not vulnerable
(2.10.1-1)
lunar Not vulnerable
(2.10.1-1)
trusty Needs triage

upstream Needs triage

mantic Not vulnerable
(2.10.1-1)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H