SUSE-SU-2026:3365-1

HIGH8.8

Security update for samba

Published Jul 28, 2026

Modified 2 weeks ago

Fix available

Details

Description of the patch:

This update for samba fixes the following issues

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).

Affected Packages(21 packages)

ctdb

SUSE Linux Enterprise High Availability Extension 15 SP5

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

libsamba-policy-devel

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

libsamba-policy-python3-devel

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

libsamba-policy0-python3

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba-ceph

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba-client

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba-client-libs

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Micro 5.5SUSE Linux Enterprise Server 15 SP5

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba-client-libs-32bit

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

samba-dcerpc

SUSE Linux Enterprise High Performance Computing 15 SP5SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP5-LTSSSUSE Linux Enterprise Server 15 SP5SUSE Linux Enterprise Server 15 SP5-LTSS

Fixed in:

4.17.12+git.581.f49579c6cd-150500.3.42.1

References

https://bugzilla.suse.com/1271469

https://bugzilla.suse.com/1271672

https://bugzilla.suse.com/1271673

https://bugzilla.suse.com/1271674

https://bugzilla.suse.com/1271675

https://bugzilla.suse.com/1271676

https://bugzilla.suse.com/1271677

https://lists.suse.com/pipermail/sle-security-updates/2026-July/028018.html

https://www.suse.com/security/cve/CVE-2026-15779/

https://www.suse.com/security/cve/CVE-2026-58216/

https://www.suse.com/security/cve/CVE-2026-58218/

https://www.suse.com/security/cve/CVE-2026-58221/

https://www.suse.com/security/cve/CVE-2026-58222/

https://www.suse.com/security/cve/CVE-2026-58224/

https://www.suse.com/security/cve/CVE-2026-6949/

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2026/suse-su-20263365-1/

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Upstream

CVE-2026-15779 CVE-2026-58216 CVE-2026-58218 CVE-2026-58221 CVE-2026-58222 CVE-2026-58224 CVE-2026-6949

Ecosystems(8)

SUSE Linux Enterprise High Availability Extension 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Micro 5.5

Timeline

PublishedJul 28, 2026

ModifiedJul 28, 2026

SUSE-SU-2026:3365-1 | Mondoo Vulnerability Intelligence