published June 10, 2021
NVD has not assigned a CVSS score to this record. It sits in the 99.3th percentile for exploit probability.
⚠️ A crafty session header can lead to a heap overflow! Just like a chef who adds too much flour to a recipe, the Apache HTTP Server can become overwhelmed from version 2.4.0 to 2.4.46. 🥴 Think of it as a restaurant trying to serve too many customers without enough staff — the kitchen gets backlogged, and things start spilling over. In this case, a malicious origin server sends a specially crafted header that pushes the server's memory to its limits, causing potential chaos. If exploited, this heap overflow could lead to unpredictable server behavior, including crashes or unauthorized access. While no known exploits are active for this vulnerability, the potential for a server meltdown is absolutely devastating if someone finds the right recipe to exploit it!
Think of it as a restaurant trying to serve too many customers without enough staff — the kitchen gets backlogged, and things start spilling over. In this case, a malicious origin server sends a specially crafted header that pushes the server's memory to its limits, causing potential chaos. This vulnerability in Apache HTTP Server allows an attacker to send a specially crafted `SessionHeader`, leading to a heap overflow in the server's memory allocation, which could compromise the server's functionality.
If exploited, this heap overflow could lead to unpredictable server behavior, including crashes or unauthorized access. While no known exploits are active for this vulnerability, the potential for a server meltdown is absolutely devastating if someone finds the right recipe to exploit it! Update your Apache HTTP Server to the latest version as soon as possible, particularly if you're running versions from 2.4.0 to 2.4.46. Regularly review and monitor your server configurations to ensure no malicious headers are being processed. You've got this! With a quick update, you'll keep your server safe and sound. 🛡️