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CVE-2018-16845

6.1 · MEDIUM

nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might…

Published Nov 7, 2018CWE-400EPSS 9.84%

Overview

CVE-2018-16845 is a medium-severity vulnerability. It was published on November 7, 2018 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted mp4 file. The issue only affects nginx if it is built with the ngx_http_mp4_module (the module is not built by default) and the .mp4. directive is used in the configuration file. Further, the attack is only possible if an attacker is able to trigger processing of a specially crafted mp4 file with the ngx_http_mp4_module.

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

Reflists.opensuse.org/opensuse-security-announce/2019-09/msg00035.htmlRefmailman.nginx.org/pipermail/nginx-announce/2018/000221.htmlRefseclists.org/fulldisclosure/2021/Sep/36Refwww.securityfocus.com/bid/105868Refwww.securitytracker.com/id/1042039Refaccess.redhat.com/errata/RHSA-2018:3652Refaccess.redhat.com/errata/RHSA-2018:3653Refaccess.redhat.com/errata/RHSA-2018:3680Refaccess.redhat.com/errata/RHSA-2018:3681Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16845

How CyberStrike helps

Frequently asked questions

What is CVE-2018-16845?

CVE-2018-16845 is a medium-severity vulnerability. It was published on November 7, 2018 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2018-16845?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-16845?

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-2018-16845?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-16845 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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