openSUSE 16: libipa_hbac-devel / libipa_hbac0 / libnfsidmap-sss / etc (openSUSE-SU-2026:21748-1)

high Nessus Plugin ID 343953

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21748-1 advisory.

Security issues fixed:

- CVE-2026-68742: insufficient validation in the NSS responder can lead to an out-of-bounds read and a process crash when a crafted GETHOSTBYADDR request is sent to the NSS responder socket (bsc#1273922).
- CVE-2026-68743: insufficient validation in the PAM responder can lead to an out-of-bounds read and a process crash when a crafted protocol v1 request is processed (bsc#1273925).
- CVE-2026-68744: improper memory management in the NSS responder can lead to uninitialized heap memory disclosure from the `sssd_nss` process (bsc#1273924).

Other updates and bugfixes:

- Add `systemd-tmpfiles` configuration file to populate `/var/lib/sss` with the correct permissions on transactional servers (bsc#1274748).

Tenable has extracted the preceding description block directly from the SUSE 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 packages.

See Also

https://bugzilla.suse.com/1273009

https://bugzilla.suse.com/1273922

https://bugzilla.suse.com/1273924

https://bugzilla.suse.com/1273925

https://bugzilla.suse.com/1274748

https://www.suse.com/security/cve/CVE-2026-68742

https://www.suse.com/security/cve/CVE-2026-68743

https://www.suse.com/security/cve/CVE-2026-68744

Plugin Details

Severity: High

ID: 343953

File Name: openSUSE-2026-21748-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/9/2026

Updated: 9/9/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.5

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-68743

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:libipa_hbac-devel, p-cpe:/a:novell:opensuse:libipa_hbac0, p-cpe:/a:novell:opensuse:libnfsidmap-sss, p-cpe:/a:novell:opensuse:libsss_certmap-devel, p-cpe:/a:novell:opensuse:libsss_certmap0, p-cpe:/a:novell:opensuse:libsss_idmap-devel, p-cpe:/a:novell:opensuse:libsss_idmap0, p-cpe:/a:novell:opensuse:libsss_nss_idmap-devel, p-cpe:/a:novell:opensuse:libsss_nss_idmap0, p-cpe:/a:novell:opensuse:python3-ipa_hbac, p-cpe:/a:novell:opensuse:python3-sss-murmur, p-cpe:/a:novell:opensuse:python3-sss_nss_idmap, p-cpe:/a:novell:opensuse:python3-sssd-config, p-cpe:/a:novell:opensuse:sssd-ad, p-cpe:/a:novell:opensuse:sssd-cifs-idmap-plugin, p-cpe:/a:novell:opensuse:sssd-dbus, p-cpe:/a:novell:opensuse:sssd-ipa, p-cpe:/a:novell:opensuse:sssd-kcm, p-cpe:/a:novell:opensuse:sssd-krb5-common, p-cpe:/a:novell:opensuse:sssd-krb5, p-cpe:/a:novell:opensuse:sssd-ldap, p-cpe:/a:novell:opensuse:sssd-proxy, p-cpe:/a:novell:opensuse:sssd-tools, p-cpe:/a:novell:opensuse:sssd-winbind-idmap, p-cpe:/a:novell:opensuse:sssd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/3/2026

Vulnerability Publication Date: 8/3/2026

Reference Information

CVE: CVE-2026-68742, CVE-2026-68743, CVE-2026-68744