Netty: Denial of Service via Unsafe Environment File Reading
CVE-2024-47535 Published on November 12, 2024
Denial of Service attack on windows app using Netty
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attempts to load a file that does not exist. If an attacker creates such a large file, the Netty application crashes. This vulnerability is fixed in 4.1.115.
Vulnerability Analysis
CVE-2024-47535 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2024-47535. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2024-47535 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2024-47535
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Affected Versions
netty:- Version < 4.1.115 is affected.
- Before 4.1.115 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2024-47535
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | io.netty:netty-common | <= 4.1.114 | 4.1.115 |
| maven | io.lettuce:lettuce-core | < 6.5.1.RELEASE | 6.5.1.RELEASE |
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.