EulerOS Virtualization 2.11.1 : expat (EulerOS-SA-2026-3413)

critical Nessus Plugin ID 347064

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the expat package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer.(CVE-2024-45490)

An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).(CVE-2024-45491)

An issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer overflow for m_groupSize on 32-bit platforms (where UINT_MAX equals SIZE_MAX).(CVE-2024-45492)

An issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser function because XML_StopParser can stop/suspend an unstarted parser.(CVE-2024-50602)

A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.(CVE-2024-8176)

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.(CVE-2025-59375)

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.(CVE-2026-24515)

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.(CVE-2026-25210)

libexpat before 2.7.5 allows an infinite loop while parsing DTD content.(CVE-2026-32777)

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.(CVE-2026-32776)

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.(CVE-2026-32778)

libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.(CVE-2026-41080)

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.(CVE-2026-45186)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization expat 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 expat packages.

Plugin Details

Severity: Critical

ID: 347064

File Name: EulerOS_SA-2026-3413.nasl

Version: 1.1

Type: Local

Family: Huawei Local Security Checks

Published: 9/18/2026

Updated: 9/18/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.98

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2024-45492

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:uvp:2.11.1, p-cpe:/a:huawei:euleros:expat

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/16/2026

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2024-45490, CVE-2024-45491, CVE-2024-45492, CVE-2024-50602, CVE-2024-8176, CVE-2025-59375, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2026-41080, CVE-2026-45186

IAVA: 2024-A-0543-S, 2024-A-0694-S, 2025-A-0186-S, 2026-A-0100-S, 2026-A-0407-S, 2026-A-0451

Detections

Analytics