Detections
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EulerOS Virtualization 2.11.0 : krb5 (EulerOS-SA-2026-3512)

high Nessus Plugin ID 347125

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 A flaw was found in krb5. With incremental propagation enabled, an authenticated attacker can cause kadmind to write beyond the end of the mapped region for the iprop log file. This issue can trigger a process crash and lead to a denial of service.(CVE-2025-24528)

 A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.(CVE-2025-3576)

 In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse_nego_message.(CVE-2026-40355)

 In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.(CVE-2026-40356)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization krb5 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 krb5 packages.

See Also

http://www.nessus.org/u?dff0d7a8

Plugin Details

Severity: High

ID: 347125

File Name: EulerOS_SA-2026-3512.nasl

Version: 1.1

Type: Local

Published: 9/18/2026

Updated: 9/18/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.47

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-40356

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:uvp:2.11.0, p-cpe:/a:huawei:euleros:krb5-client, p-cpe:/a:huawei:euleros:krb5-devel, p-cpe:/a:huawei:euleros:krb5-help, p-cpe:/a:huawei:euleros:krb5-libs, p-cpe:/a:huawei:euleros:krb5-server, p-cpe:/a:huawei:euleros:krb5

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: 2/12/2025

Reference Information

CVE: CVE-2025-24528, CVE-2025-3576, CVE-2026-40355, CVE-2026-40356