Detections
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MiracleLinux 8 : libxml2-2.9.7-9.el8.2 (AXSA:2021-2193:02)

high Nessus Plugin ID 291696

Synopsis

The remote MiracleLinux host is missing one or more security updates.

Description

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-2193:02 advisory.

 * libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3516)
 * libxml2: Heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3517)
 * libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c (CVE-2021-3518)
 * libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode (CVE-2021-3537)
 * libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms (CVE-2021-3541)

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

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

Solution

Update the affected libxml2, libxml2-devel and / or python3-libxml2 packages.

See Also

https://tsn.miraclelinux.com/en/node/13375

Plugin Details

Severity: High

ID: 291696

File Name: miracle_linux_AXSA-2021-2193.nasl

Version: 1.1

Type: local

Published: 1/19/2026

Updated: 1/19/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-3517

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2021-3518

Vulnerability Information

CPE: p-cpe:/a:miracle:linux:libxml2-devel, p-cpe:/a:miracle:linux:python3-libxml2, cpe:/o:miracle:linux:8, p-cpe:/a:miracle:linux:libxml2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/12/2021

Vulnerability Publication Date: 5/14/2021

Reference Information

CVE: CVE-2021-3516, CVE-2021-3517, CVE-2021-3518, CVE-2021-3537, CVE-2021-3541