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Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2.17.
Use CWE-502, Apache vendor hub and Log4j product page to widen CVE-2019-17571 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2021-45046, CVE-2022-23305 and CVE-2022-23307 for nearby disclosures in the same product family.