CVE-2018-6332

State: Published
Severity: 5.9 Medium
Published: Dec 3, 2018
Updated: May 6, 2025
Reserved: Jan 26, 2018

Description

A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 settings which can cause the server to spend disproportionate resources. This affects all supported versions of HHVM (3.24.3 and 3.21.7 and below) when using the proxygen server to handle HTTP2 requests.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-400 Denial of Service (CWE-400)

Affected Products

Product	Versions
HHVMFacebook	3.24.4Affected 3.22.0 to before unspecifiedAffected 3.21.8Affected before 3.21.8Affected

References

https://hhvm.com/blog/2018/03/15/hhvm-3.25.html

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.