Vulnerability DatabaseCVE-2018-1000168
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CVE-2018-1000168
Published:May 08, 2018
Updated:July 21, 2026
nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.
Related Resources (8)
https://access.redhat.com/errata/RHSA-2019:0366
https://access.redhat.com/errata/RHSA-2019:0367
https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/
https://security-tracker.debian.org/tracker/CVE-2018-1000168
http://www.securityfocus.com/bid/103952
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/
https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-1000168
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Input Validation
CWE-20
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
10.65