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EulerOS 2.0 SP15 : sssd (EulerOS-SA-2026-2952)

medium Nessus Plugin ID 332919

Synopsis

The remote EulerOS host is missing a security update.

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 the System Security Services Daemon (SSSD). The pam_passkey_child_read_data() function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an out-of-bounds read when processed by functions like snprintf(). A local attacker could potentially trigger this vulnerability by initiating a crafted passkey authentication request, causing the SSSD PAM responder to crash, resulting in a local Denial of Service (DoS).(CVE-2026-6245)

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

See Also

http://www.nessus.org/u?3bfdf5e3

Plugin Details

Severity: Medium

ID: 332919

File Name: EulerOS_SA-2026-2952.nasl

Version: 1.1

Type: Local

Published: 8/6/2026

Updated: 8/6/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.96

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-6245

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:libipa_hbac, p-cpe:/a:huawei:euleros:libsss_autofs, p-cpe:/a:huawei:euleros:libsss_certmap, p-cpe:/a:huawei:euleros:libsss_idmap, p-cpe:/a:huawei:euleros:libsss_nss_idmap, p-cpe:/a:huawei:euleros:libsss_sudo, p-cpe:/a:huawei:euleros:python3-libipa_hbac, p-cpe:/a:huawei:euleros:python3-libsss_nss_idmap, p-cpe:/a:huawei:euleros:python3-sss-murmur, p-cpe:/a:huawei:euleros:python3-sss, p-cpe:/a:huawei:euleros:python3-sssdconfig, p-cpe:/a:huawei:euleros:sssd-ad, p-cpe:/a:huawei:euleros:sssd-client, p-cpe:/a:huawei:euleros:sssd-common-pac, p-cpe:/a:huawei:euleros:sssd-common, p-cpe:/a:huawei:euleros:sssd-dbus, p-cpe:/a:huawei:euleros:sssd-help, p-cpe:/a:huawei:euleros:sssd-ipa, p-cpe:/a:huawei:euleros:sssd-kcm, p-cpe:/a:huawei:euleros:sssd-krb5-common, p-cpe:/a:huawei:euleros:sssd-krb5, p-cpe:/a:huawei:euleros:sssd-ldap, p-cpe:/a:huawei:euleros:sssd-nfs-idmap, p-cpe:/a:huawei:euleros:sssd-proxy, p-cpe:/a:huawei:euleros:sssd-tools, p-cpe:/a:huawei:euleros:sssd-winbind-idmap, 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: 8/6/2026

Vulnerability Publication Date: 4/15/2026

Reference Information

CVE: CVE-2026-6245