VYPR
High severityNVD Advisory· Published Mar 10, 2023· Updated Feb 13, 2025

Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender

CVE-2023-26464

Description

UNSUPPORTED WHEN ASSIGNED

When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized.

This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.logging.log4j:log4j-coreMaven
>= 1.0.4, < 2.02.0
log4j:log4jMaven
>= 1.0.4, < 2.02.0

Affected products

5

Patches

Vulnerability mechanics

References

5

News mentions

0

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