CVE-2022-38667

HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used

published August 22, 2022

CVSS
—
EPSS
3%
Percentile
87.8
In the wild
Unconfirmed
What it is

⚡ A sneaky use-after-free vulnerability lurks in Crow HTTP servers! If HTTP pipelining is used, attackers could potentially execute malicious code. 🔥 Think of HTTP pipelining as a busy restaurant where orders are being taken—if the server starts cooking a new dish before finishing the previous one, it could mix up ingredients and serve something unexpected! An attacker could exploit this situation to execute arbitrary code on the server, potentially leading to unauthorized access or system compromise. The implications could be critical, especially in applications running sensitive operations. Imagine the chaos if a malicious chef swapped ingredients in their favor!

Put simply

Think of HTTP pipelining as a busy restaurant where orders are being taken—if the server starts cooking a new dish before finishing the previous one, it could mix up ingredients and serve something unexpected! This vulnerability occurs due to a use-after-free condition in the Crow HTTP server when handling HTTP pipelining. The connection layer processes requests without being aware that an earlier request hasn't completed, leading to unpredictable behavior.

What to do

An attacker could exploit this situation to execute arbitrary code on the server, potentially leading to unauthorized access or system compromise. The implications could be critical, especially in applications running sensitive operations. Imagine the chaos if a malicious chef swapped ingredients in their favor! Upgrade to the latest version of Crow to mitigate this vulnerability. Additionally, review and update any configurations involving HTTP pipelining to ensure safer operation. Regularly audit your server's handling of connections for best practices. You've got this! With the right steps, you'll keep your server safe and secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03128 · 87.8th percentile
Published
2022-08-22T19:07Z
EPSS history
Timeline
  • 22 AUG 19:07Z
    HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used
    cvelistv5