CVE-2021-45105 vulnerability in Apache and Other Products
Published on December 18, 2021
Apache Log4j2 does not always protect from infinite recursion in lookup evaluation
Weakness Types
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
What is a Stack Exhaustion Vulnerability?
The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
CVE-2021-45105 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2021-45105
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Affected Versions
Apache Software Foundation Apache Log4j2:- Version log4j-core and below 2.17.0 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2021-45105
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.powernukkit:powernukkit | <= 1.5.2.0 | 1.5.2.1 |
| maven | com.hazelcast.jet:hazelcast-jet | >= 4.1, < 4.5.3 | 4.5.3 |
| maven | com.hazelcast:hazelcast | >= 5.0, < 5.0.2 | 5.0.2 |
| maven | com.hazelcast:hazelcast | < 4.0.5 | 4.0.5 |
| maven | com.hazelcast:hazelcast | >= 4.1.1, < 4.1.8 | 4.1.8 |
| maven | com.hazelcast:hazelcast | >= 4.2, < 4.2.4 | 4.2.4 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.