RockyLinux 9 : libxml2 (RLSA-2025:10699)

critical Nessus Plugin ID 266717

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Synopsis

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

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:10699 advisory.

* libxml: Heap use after free (UAF) leads to Denial of service (DoS) (CVE-2025-49794)

* libxml: Type confusion leads to Denial of service (DoS) (CVE-2025-49796)

* libxml2: Integer Overflow in xmlBuildQName() Leads to Stack Buffer Overflow in libxml2 (CVE-2025-6021)

Tenable has extracted the preceding description block directly from the RockyLinux 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 packages.

Plugin Details

Severity: Critical

ID: 266717

File Name: rocky_linux_RLSA-2025-10699.nasl

Version: 1.1

Type: local

Family: Rocky Linux Local Security Checks

Published: 10/6/2025

Updated: 10/6/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2025-49796

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:python3-libxml2-debuginfo, p-cpe:/a:rocky:linux:libxml2-debugsource, p-cpe:/a:rocky:linux:libxml2-debuginfo, p-cpe:/a:rocky:linux:libxml2-devel, p-cpe:/a:rocky:linux:python3-libxml2, p-cpe:/a:rocky:linux:libxml2, cpe:/o:rocky:linux:9

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/4/2025

Vulnerability Publication Date: 6/12/2025

Reference Information

CVE: CVE-2025-49794, CVE-2025-49796, CVE-2025-6021

Detections

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