Debian DLA-2670-1 : nginx security update

high Nessus Plugin ID 150097

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Synopsis

The remote Debian host is missing a security update.

Description

Luis Merino, Markus Vervier and Eric Sesterhenn discovered an off-by-one in Nginx, a high-performance web and reverse proxy server, which could result in denial of service and potentially the execution of arbitrary code.

For Debian 9 stretch, this problem has been fixed in version 1.10.3-1+deb9u6.

We recommend that you upgrade your nginx packages.

For the detailed security status of nginx please refer to its security tracker page at: https://security-tracker.debian.org/tracker/nginx

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 150097

File Name: debian_DLA-2670.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/1/2021

Updated: 9/21/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-23017

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libnginx-mod-http-xslt-filter, p-cpe:/a:debian:debian_linux:libnginx-mod-http-upstream-fair, p-cpe:/a:debian:debian_linux:nginx-light, p-cpe:/a:debian:debian_linux:libnginx-mod-http-auth-pam, p-cpe:/a:debian:debian_linux:libnginx-mod-http-ndk, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:nginx-doc, p-cpe:/a:debian:debian_linux:nginx-extras, p-cpe:/a:debian:debian_linux:libnginx-mod-http-subs-filter, p-cpe:/a:debian:debian_linux:libnginx-mod-http-uploadprogress, p-cpe:/a:debian:debian_linux:libnginx-mod-http-perl, p-cpe:/a:debian:debian_linux:libnginx-mod-http-fancyindex, p-cpe:/a:debian:debian_linux:libnginx-mod-http-lua, p-cpe:/a:debian:debian_linux:libnginx-mod-mail, p-cpe:/a:debian:debian_linux:libnginx-mod-stream, p-cpe:/a:debian:debian_linux:nginx-full, p-cpe:/a:debian:debian_linux:libnginx-mod-http-cache-purge, p-cpe:/a:debian:debian_linux:libnginx-mod-http-echo, p-cpe:/a:debian:debian_linux:libnginx-mod-http-headers-more-filter, p-cpe:/a:debian:debian_linux:libnginx-mod-nchan, p-cpe:/a:debian:debian_linux:nginx-common, p-cpe:/a:debian:debian_linux:libnginx-mod-http-image-filter, p-cpe:/a:debian:debian_linux:libnginx-mod-http-geoip, p-cpe:/a:debian:debian_linux:nginx, p-cpe:/a:debian:debian_linux:libnginx-mod-http-dav-ext

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/30/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2021-23017

Detections

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