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FreeBSD : NGINX -- Multiple vulnerabilities (84ca56be-e1de-11e8-bcfd-00e04c1ea73d)

medium Nessus Plugin ID 118754

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

NGINX Team reports :

Two security issues were identified in nginx HTTP/2 implementation, which might cause excessive memory consumption (CVE-2018-16843) and CPU usage (CVE-2018-16844).

The issues affect nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

A security issue was identified 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 isclosure by using a specially crafted mp4 file (CVE-2018-16845).

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.

Solution

Update the affected packages.

See Also

http://nginx.org/en/security_advisories.html

http://www.nessus.org/u?982b8852

Plugin Details

Severity: Medium

ID: 118754

File Name: freebsd_pkg_84ca56bee1de11e8bcfd00e04c1ea73d.nasl

Version: 1.6

Type: local

Published: 11/7/2018

Updated: 4/27/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2018-16845

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:nginx, p-cpe:/a:freebsd:freebsd:nginx-devel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 11/6/2018

Vulnerability Publication Date: 11/6/2018

Reference Information

CVE: CVE-2018-16843, CVE-2018-16844, CVE-2018-16845