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CVE-2018-1000168

7.5 · HIGH

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.

Published May 8, 2018CWE-20EPSS 10.58%

Overview

CVE-2018-1000168 is a high-severity vulnerability. It was published on May 8, 2018 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/103952Refaccess.redhat.com/errata/RHSA-2019:0366Refaccess.redhat.com/errata/RHSA-2019:0367Reflists.debian.org/debian-lts-announce/2021/10/msg00011.htmlRefnghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/Refnodejs.org/en/blog/vulnerability/june-2018-security-releases/Refwww.securityfocus.com/bid/103952Refaccess.redhat.com/errata/RHSA-2019:0366Refaccess.redhat.com/errata/RHSA-2019:0367Reflists.debian.org/debian-lts-announce/2021/10/msg00011.html

How CyberStrike helps

Frequently asked questions

What is CVE-2018-1000168?

CVE-2018-1000168 is a high-severity vulnerability. It was published on May 8, 2018 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2018-1000168?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-1000168?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-1000168?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-1000168 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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