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EulerOS 2.0 SP15 : samba (EulerOS-SA-2026-3950)

medium Nessus Plugin ID 363974

Synopsis

The remote EulerOS host is missing a security update.

Description

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

 A flaw was found in samba's pam_winbind. When mkhomedir is enabled, pam_winbind chowns the target account's home directory without validating the path is not a critical system directory such as /. On affected systems, accounts with / as their home directory (a common default for system accounts) can have this triggered not only by root, but by a non-root user holding a narrow sudo delegation to run commands as that account, causing ownership of / to change and resulting in severe denial of service (SSH, sudo, and package-manager failures). The change does not grant write access to / (which ships with restrictive 0555 permissions on RHEL), so the impact is availability loss rather than further privilege escalation.(CVE-2026-15779)

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

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 samba packages.

See Also

http://www.nessus.org/u?7c8ecaa9

Plugin Details

Severity: Medium

ID: 363974

File Name: EulerOS_SA-2026-3950.nasl

Version: 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.88

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-15779

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libsmbclient, p-cpe:/a:huawei:euleros:libwbclient, p-cpe:/a:huawei:euleros:samba-client-libs, p-cpe:/a:huawei:euleros:samba-client, p-cpe:/a:huawei:euleros:samba-common-tools, p-cpe:/a:huawei:euleros:samba-common, p-cpe:/a:huawei:euleros:samba-help, p-cpe:/a:huawei:euleros:samba-libs, p-cpe:/a:huawei:euleros:samba-winbind-clients, p-cpe:/a:huawei:euleros:samba-winbind-modules, p-cpe:/a:huawei:euleros:samba-winbind, p-cpe:/a:huawei:euleros:samba

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 7/15/2026

Reference Information

CVE: CVE-2026-15779