Log4j 2.17.0 Still Vulnerable: CVE‑2021‑44832 Details and Fixes
The Log4j 2.17.0 release still contains a medium‑severity vulnerability (CVE‑2021‑44832) in the JDBCAppender that allows remote code execution via JNDI, affecting versions up to 2.17.0, and can be mitigated by upgrading to the appropriate patched version for each Java runtime.
According to the official Log4j website, version 2.17.0 still contains a vulnerability (CVE‑2021‑44832).
The flaw lies in the JDBCAppender feature, which writes log events to a database using JNDI; an attacker can exploit it to execute arbitrary code.
Severity: Medium.
Affected versions: 2.17.0 and earlier (excluding 2.12.4 and 2.3.2).
Mitigation: Upgrade Log4j2 to a patched version:
Java 8 and later: upgrade to 2.17.1.
Java 7: upgrade to 2.12.4.
Java 6: upgrade to 2.3.2.
The issue is similar to the previously disclosed Logback vulnerability, but due to strict exploitation conditions its impact is limited; users are advised to stay calm and apply the fixes promptly.
Signed-in readers can open the original source through BestHub's protected redirect.
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Programmer DD
A tinkering programmer and author of "Spring Cloud Microservices in Action"
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