CVE-2024-27983

Published Apr 9, 2024

Last updated 5 months ago

CVSS high 8.2

Overview

Description
An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.
Source
support@hackerone.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.0

Type
Secondary
Base score
8.2
Impact score
4.2
Exploitability score
3.9
Vector string
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Severity
HIGH

Social media

Hype score
Not currently trending

References