CVEvulnerability

CVE-2018-6335

7.5 HIGH Published 2018-12-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-12-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20, CWE-400

Description

A Malformed h2 frame can cause 'std::out_of_range' exception when parsing priority meta data. This behavior can lead to denial-of-service. This affects all supported versions of HHVM (3.25.2, 3.24.6, and 3.21.10 and below) when using the proxygen server to handle HTTP2 requests.

Affected configurations

• facebook hhvm (<= 3.21.10) • facebook hhvm 3.24.6 • facebook hhvm 3.25.2

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-400 Uncontrolled Resource Consumption weakness

References