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AlmaLinux 8 : nginx:1.20 (ALSA-2022:0323)

high Nessus Plugin ID 158864

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2022:0323 advisory.

 * nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name (CVE-2021-23017)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/8/ALSA-2022-0323.html

Plugin Details

Severity: High

ID: 158864

File Name: alma_linux_ALSA-2022-0323.nasl

Version: 1.6

Type: local

Published: 3/12/2022

Updated: 1/13/2025

Supported Sensors: Continuous Assessment, 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:alma:linux:nginx-mod-http-image-filter, p-cpe:/a:alma:linux:nginx-mod-stream, p-cpe:/a:alma:linux:nginx-mod-http-perl, p-cpe:/a:alma:linux:nginx-filesystem, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:nginx, p-cpe:/a:alma:linux:nginx-mod-mail, p-cpe:/a:alma:linux:nginx-all-modules, p-cpe:/a:alma:linux:nginx-mod-http-xslt-filter

Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/31/2022

Vulnerability Publication Date: 5/25/2021

Reference Information

CVE: CVE-2021-23017

IAVB: 2021-B-0031