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EulerOS 2.0 SP12 : sssd (EulerOS-SA-2026-3389)

high Nessus Plugin ID 343711

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

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

 A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.(CVE-2026-12610)

 A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.(CVE-2026-14476)

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

See Also

http://www.nessus.org/u?d2d1b4c4

Plugin Details

Severity: High

ID: 343711

File Name: EulerOS_SA-2026-3389.nasl

Version: 1.1

Type: Local

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.1

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-14476

CVSS v3

Risk Factor: High

Base Score: 8

Temporal Score: 7

Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/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:python3-sssd, p-cpe:/a:huawei:euleros:sssd-help, p-cpe:/a:huawei:euleros:sssd

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: 9/8/2026

Vulnerability Publication Date: 6/30/2026

Reference Information

CVE: CVE-2026-12610, CVE-2026-14476