CVE-2018-16845

moderate-risk
Published 2018-11-07

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.

Do I need to act?

~
6.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
LOCAL / LOW complexity

Affected Products (9)

Affected Vendors

Debian Apple F5 Canonical Opensuse

References (28)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
Mailing List http://mailman.nginx.org/pipermail/nginx-announce/2018/000221.html
Mailing List http://seclists.org/fulldisclosure/2021/Sep/36
Third Party Advisory http://www.securityfocus.com/bid/105868
Third Party Advisory http://www.securitytracker.com/id/1042039
Third Party Advisory 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
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16845
Mailing List https://lists.debian.org/debian-lts-announce/2018/11/msg00010.html
Third Party Advisory https://support.apple.com/kb/HT212818
Patch https://usn.ubuntu.com/3812-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4335
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
Mailing List http://mailman.nginx.org/pipermail/nginx-announce/2018/000221.html
Mailing List http://seclists.org/fulldisclosure/2021/Sep/36
Third Party Advisory http://www.securityfocus.com/bid/105868
Third Party Advisory http://www.securitytracker.com/id/1042039
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3652
and 8 more references
44
/ 100
moderate-risk
Severity 20/34 · Moderate
Exploitability 9/34 · Low
Exposure 15/34 · Moderate