openSUSE 16: ctdb / ctdb-pcp-pmda / ldb-tools / libldb-devel / libldb2 / etc (openSUSE-SU-2026:21540-1)

critical Nessus Plugin ID 333510

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-2026:21540-1 advisory.

Update to 4.22.11.

Security issues fixed:

- CVE-2026-1933: missing access check on reparse point operations allows unauthorized users to modify the `user.SmbReparse` xattr (bsc#1261188).
- CVE-2026-2340: WORM vfs module does not block directory modification and allows file changes by any user with write access (bsc#1261158).
- CVE-2026-3012: auto-enrolment GPO installing CA certificate over http without verification (bsc#1261159).
- CVE-2026-3238: NULL pointer dereference in the WINS server compoenent of the AD domain controller code can lead to crash via crafted UDP packet (bsc#1261160).
- CVE-2026-4408: improper escaping allows for remote command execution via the DCE/RPC SAMR server (bsc#1261163).
- CVE-2026-4480: improper escaping allows for unauthenticated remote code execution via the printing subsystem (bsc#1261161).
- CVE-2026-6949: TSIG packet with crafted name compression can crash internal DNS server (bsc#1271672).
- CVE-2026-15779: `pam_winbind` module with `mkhomedir` set allows `chown` of critical system paths without validation (bsc#1271469).
- CVE-2026-58216: 6-byte heap OOB read in packet parser of the `kpasswd` service (bsc#1271674).
- CVE-2026-58218: DNS TKEY negotiation stores unauthenticated GSS contexts in a fixed FIFO before authentication completes (bsc#1271675).
- CVE-2026-58221: authenticated LDAP access to internal LDB special DNs permits domain takeover (bsc#1271676).
- CVE-2026-58222: LDAP Compare filter injection and trusted-request confusion disclose protected attributes (bsc#1271677).
- CVE-2026-58224: heap OOB read due to unchecked packet length fields in CTDB (bsc#1271673).

Other updates and bugfixes:

- `samba-tool`: do not complain of no subcommand with `-V` (bsc#1273189, bso#15770).
- Add `python3-cryptography` and `python3-requests` requirements for `samba-python3`.

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.

Plugin Details

Severity: Critical

ID: 333510

File Name: openSUSE-2026-21540-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 8/8/2026

Updated: 8/8/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.03

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-4480

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:ctdb-pcp-pmda, p-cpe:/a:novell:opensuse:ctdb, p-cpe:/a:novell:opensuse:ldb-tools, p-cpe:/a:novell:opensuse:libldb-devel, p-cpe:/a:novell:opensuse:libldb2, p-cpe:/a:novell:opensuse:python3-ldb, p-cpe:/a:novell:opensuse:samba-ad-dc-libs, p-cpe:/a:novell:opensuse:samba-ad-dc, p-cpe:/a:novell:opensuse:samba-ceph, p-cpe:/a:novell:opensuse:samba-client-libs, p-cpe:/a:novell:opensuse:samba-client, p-cpe:/a:novell:opensuse:samba-dcerpc, p-cpe:/a:novell:opensuse:samba-devel, p-cpe:/a:novell:opensuse:samba-dsdb-modules, p-cpe:/a:novell:opensuse:samba-gpupdate, p-cpe:/a:novell:opensuse:samba-ldb-ldap, p-cpe:/a:novell:opensuse:samba-libs-python3, p-cpe:/a:novell:opensuse:samba-libs, p-cpe:/a:novell:opensuse:samba-python3, p-cpe:/a:novell:opensuse:samba-test, p-cpe:/a:novell:opensuse:samba-tool, p-cpe:/a:novell:opensuse:samba-winbind-libs, p-cpe:/a:novell:opensuse:samba-winbind, p-cpe:/a:novell:opensuse:samba

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-15779, CVE-2026-1933, CVE-2026-2340, CVE-2026-3012, CVE-2026-3238, CVE-2026-4408, CVE-2026-4480, CVE-2026-58216, CVE-2026-58218, CVE-2026-58221, CVE-2026-58222, CVE-2026-58224, CVE-2026-6949

IAVA: 2026-A-0510-S, 2026-A-0794

Detections

Analytics