Security News > 2021 > December > Bad things come in threes: Apache reveals another Log4J bug
The Apache Software Foundation has revealed a third bug in its Log4 Java-based open-source logging library Log4j.
CVE-2021-45105 is a 7.5/10-rated infinite recursion bug that was present in Log4j2 versions 2.0-alpha1 through 2.16.0.
The fix is version 2.17.0 of Log4j.
In case you haven't been paying attention, version 2.15.0 was created to fix CVE-2021-44228, the critical-rated and trivial-to-exploit remote code execution flaw present in many versions up to 2.14.0.
Version 2.15.0 didn't address another issue - CVE-2021-45046 - which allowed a remote attacker with control over Thread Context Map to cook up malicious input using a JNDI Lookup pattern.
You know the drill by now: download the latest version 2.17.0 of Log4J, here, and install it everywhere Log4j runs, which of course turns out to be everywhere.
News URL
https://go.theregister.com/feed/www.theregister.com/2021/12/19/log4j_new_flaw_cve_2021_45105/
Related Vulnerability
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-12-18 | CVE-2021-45105 | Uncontrolled Recursion vulnerability in multiple products Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. | 5.9 |
| 2021-12-14 | CVE-2021-45046 | It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. | 9.0 |
| 2021-12-10 | CVE-2021-44228 | Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. network low complexity apache siemens intel debian fedoraproject sonicwall netapp cisco snowsoftware bentley percussion apple critical | 10.0 |