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Vulnerability record · CVE-2018-16845 · published 7 November 2018

CVE-2018-16845: F5 nginx uncontrolled resource consumption vulnerability

F5 · Nginx

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.

6.1 CVSS 3.1 Medium EPSS 9.8% · top 4.6% CWE-400 · Uncontrolled resource consumptionCWE-835 · CWE-835
6.1CVSS 3.1 base score, v2 5.8
9.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
28References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html Mailing ListThird Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2018/000221.html Mailing ListPatchVendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/36 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/105868 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042039 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:3652 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3653 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3680 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3681 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16845 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00010.html Mailing ListThird Party Advisory
https://support.apple.com/kb/HT212818 Third Party Advisory
https://usn.ubuntu.com/3812-1/ PatchThird Party Advisory
https://www.debian.org/security/2018/dsa-4335 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html Mailing ListThird Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2018/000221.html Mailing ListPatchVendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/36 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/105868 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042039 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:3652 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3653 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3680 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3681 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16845 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00010.html Mailing ListThird Party Advisory
https://support.apple.com/kb/HT212818 Third Party Advisory
https://usn.ubuntu.com/3812-1/ PatchThird Party Advisory
https://www.debian.org/security/2018/dsa-4335 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-16845), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.