Stack-based buffer overflow in nginx and NGINX Plus - CVE-2024-31079
Published: June 4, 2024
Vulnerability identifier: #VU90991
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-31079
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
nginx
NGINX Plus
nginx
NGINX Plus
Software vendor:
F5 Networks
F5 Networks
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when HTTP/3 requests within the HTTP/3 QUIC module
(ngx_http_v3_module). A remote attacker can send specially crafted requests to the web server, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.
This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.
Remediation
Install updates from vendor's website.