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Affected versions of this package are vulnerable to Denial of Service (DoS) due to the unsafe reading of an environment file when loaded on a Windows application. An attacker can cause the application to crash by creating a large, non-existent file that the application attempts to load.
If an attacker creates a file larger than the JVM's maximum memory limit (1 GB) at these locations, the library will attempt to load this oversized file into memory, causing the application to crash.
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 ws package
Remediation
Upgrade io.netty:netty-common to version 4.1.115.Final or higher.
CVE-2024-47535 - Denial of Service (DoS) in io.netty:netty-common
io.netty:netty-common
Introduced through: org.keycloak:[email protected] › org.keycloak:[email protected] › io.quarkus:[email protected] › io.smallrye.common:[email protected] › io.vertx:[email protected] › io.netty:[email protected]
Overview
Affected versions of this package are vulnerable to Denial of Service (DoS) due to the unsafe reading of an environment file when loaded on a Windows application. An attacker can cause the application to crash by creating a large, non-existent file that the application attempts to load.
If an attacker creates a file larger than the JVM's maximum memory limit (1 GB) at these locations, the library will attempt to load this oversized file into memory, causing the application to crash.
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
wspackageRemediation
Upgrade
io.netty:netty-commonto version 4.1.115.Final or higher.References
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