Main Vulnerability Database Vulnerabilities #VU32066

Input validation error in h2o - CVE-2017-10868

Published: December 22, 2017 / Updated: July 28, 2020

Vulnerability identifier: #VU32066

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2017-10868

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

H2O version 2.2.2 and earlier allows remote attackers to cause a denial of service in the server via specially crafted HTTP/1 header.

h2o
h2o (Alpine package)

Install update from vendor's website.

h2o - update to 2.2.5
h2o (Alpine package) - update to 2.2.3-r0