Heap-based buffer overflow in Node.js - CVE-2018-12121
Published: November 29, 2018
Vulnerability identifier: #VU16168
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-12121
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Node.js Foundation
Affected software:
Node.js
Node.js
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to heap-based buffer overflow. A remote attacker can send many requests with the maximum size HTTP header of nearly 80kb/connection in combination with carefully handled completion of those headers, trigger memory corruption and cause the Node.js HTTP server to abort.
How to mitigate CVE-2018-12121
The vulnerability has been fixed in the versions 6.15.0, 8.14.0, 10.14.0, 11.3.0.