DEBIAN-CVE-2021-44228

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2021-44228
Published: 10 Dec 2021, 10:15
Last modified:15 Jun 2026, 19:03

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
10 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Dec 2021, 10:15
Published
Vulnerability first disclosed
15 Jun 2026, 19:03
Last Modified
Vulnerability information updated

Description

Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

CVSS Metrics

  • v3.1•CRITICAL•Score: 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•apache-log4j2

    < 2.15.0-1~deb11u1 | < 2.15.0-1 | < 2.15.0-1 | < 2.15.0-1

References (1)