org.apache.logging.log4j:log4j-core@2.0-beta4 vulnerabilities

Direct Vulnerabilities

Known vulnerabilities in the org.apache.logging.log4j:log4j-core package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • L
Man-in-the-Middle (MitM)

org.apache.logging.log4j:log4j-core is a logging library for Java.

Affected versions of this package are vulnerable to Man-in-the-Middle (MitM). Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender.

How to fix Man-in-the-Middle (MitM)?

Upgrade org.apache.logging.log4j:log4j-core to version 2.13.2 or higher.

[,2.13.2)
  • C
Deserialization of Untrusted Data

org.apache.logging.log4j:log4j-core is a logging library for Java.

Affected versions of this package are vulnerable to Deserialization of Untrusted Data. When using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

How to fix Deserialization of Untrusted Data?

Upgrade org.apache.logging.log4j:log4j-core to version 2.8.2 or higher.

[,2.8.2)