Uncontrolled Resource Consumption in Apache HttpComponents Core

Executive Summary

This vulnerability is an Uncontrolled Resource Consumption issue in the HTTP/1.1 message parser of Apache HttpComponents Core versions 5.4.2 and earlier, and 5.5-beta1 and earlier.

It allows a remote attacker to cause a denial of service by exhausting memory resources. This is achieved by sending HTTP messages that contain an excessive number of headers or headers with excessive length.

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Impact Analysis

The primary impact of this vulnerability is a denial of service condition.

An attacker can exploit this flaw to consume excessive memory on the affected system, potentially causing the application or server to crash or become unresponsive.

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Compliance Impact

The provided information does not specify how the Uncontrolled Resource Consumption vulnerability in Apache HttpComponents Core impacts compliance with common standards and regulations such as GDPR or HIPAA.

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Mitigation Strategies

The vulnerability affects Apache HttpComponents Core versions 5.4.2 and earlier, as well as 5.5-beta1 and earlier. To mitigate this vulnerability, you should upgrade to a version later than these affected releases where the issue is fixed.

Since the vulnerability allows denial of service through memory exhaustion caused by excessive HTTP headers or header length, immediate mitigation steps include limiting the number and size of HTTP headers accepted by your server or application if possible.

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