Exploit for #VU53543 Off-by-one in nginx

Vulnerability identifier: #VU53543

Vulnerability risk: High

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2021-23017

CWE-ID: CWE-193

Exploitation vector: Network

Exploits in database: 3

• July 31, 2022
  • Nginx 1.20.0 - Denial of Service (DOS) [Exploit-DB]
• July 3, 2022
  • CVE-2021-23017-PoC (PoC for Nginx 0.6.18 - 1.20.0 Memory Overwrite Vulnerability CVE-2021-23017) [Github]
• May 25, 2021
  • X41-2021-002: nginx Resolver Copy Off By One Heap Corruption [Custom exploits]

Vulnerable software:
nginx
Server applications / Web servers

Vendor: NGINX