Denial of Service (DoS) Affecting io.netty:netty-common package, versions [,4.1.115.Final)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published12 Nov 2024
- disclosed12 Nov 2024
- creditAmossys-PGR
Introduced: 12 Nov 2024
CVE-2024-47535 (opens in a new tab)How to fix?
Upgrade io.netty:netty-common to version 4.1.115.Final or higher.
Overview
Affected versions of this package are vulnerable to Denial of Service (DoS) due to the extraneous reading of a Linux environment file when loaded on a Windows application. An attacker can cause the application to crash by creating a large file in C:\etc\os-release or C:\usr\lib\os-release which the application attempts to load. If the file exceeds the JVM's memory limit (1 GB by default) the application will crash when loading it into memory.
Note: This vulnerability affects only Windows environments.
Details
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm
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