CVE-2018-1000168

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 6.71% Top 10%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory nghttp2.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2019:0367 third party advisory vendor advisory
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/ third party advisory release notes
http://www.securityfocus.com/bid/103952 vdb entry third party advisory broken link
https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/ vendor advisory
https://access.redhat.com/errata/RHSA-2019:0366 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2018-1000168?
CVE-2018-1000168 has been scored as a high severity vulnerability.
How to fix CVE-2018-1000168?
To fix CVE-2018-1000168, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-1000168 being actively exploited in the wild?
It is possible that CVE-2018-1000168 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.