CVE-2024-50596: st x-cube-azrt-h7rs Integer Underflow (Wrap or Wraparound)

Vulnerability summary

CVE-2024-50596 is a high (CVSS 7.5) Integer Underflow (Wrap or Wraparound) vulnerability in st x-cube-azrt-h7rs. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 54.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 02-04-2025
   PublishedVulnerability first disclosed.
2. 03-11-2025
   Last modifiedVulnerability information updated.

Description

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Web Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\web\nx_web_http_server.c

• CWE-191Integer Underflow (Wrap or Wraparound)The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.