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Improper Input Validation Affecting apache-log4j2 package, versions <2.17.1-1~deb10u1

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 2.24% (90th percentile)
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NVD
6.6 medium
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Red Hat
6.6 medium

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  • Snyk ID SNYK-DEBIAN10-APACHELOG4J2-2327489
  • published 29 Dec 2021
  • disclosed 28 Dec 2021
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Introduced: 28 Dec 2021

CVE-2021-44832 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Debian:10 apache-log4j2 to version 2.17.1-1~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache-log4j2 package and not the apache-log4j2 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

References