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CVE-2021-44832

Published: 28 December 2021

Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.

Priority

Medium

Cvss 3 Severity Score

6.6

Score breakdown

Status

Package Release Status
apache-log4j2
Launchpad, Ubuntu, Debian
bionic
Released (2.12.4-0ubuntu0.1)
focal
Released (2.17.1-0.20.04.1)
hirsute
Released (2.17.1-0.21.04.1)
impish
Released (2.17.1-0.21.10.1)
jammy Not vulnerable
(2.17.1-1)
kinetic Not vulnerable
(2.17.2-1)
lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

trusty Does not exist

upstream Needs triage

xenial Needed

Severity score breakdown

Parameter Value
Base score 6.6
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H