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Rocky Linux 8 : nginx:1.18 (RLSA-2021:2259)

high Nessus Plugin ID 157769

Synopsis

The remote Rocky Linux host is missing a security update.

Description

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:2259 advisory.

 - A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact. (CVE-2021-23017)

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.rockylinux.org/RLSA-2021:2259

https://bugzilla.redhat.com/show_bug.cgi?id=1963121

Plugin Details

Severity: High

ID: 157769

File Name: rocky_linux_RLSA-2021-2259.nasl

Version: 1.7

Type: local

Published: 2/9/2022

Updated: 11/6/2023

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/22/2021

Vulnerability Publication Date: 5/25/2021

Reference Information

CVE: CVE-2021-23017

IAVB: 2021-B-0031