Security update for samba

Announcement ID:	SUSE-SU-2026:2073-1
Release Date:	2026-05-26T12:35:35Z
Rating:	critical
References:	bsc#1261158 bsc#1261160 bsc#1261161 bsc#1261163
Cross-References:	CVE-2026-2340 CVE-2026-3238 CVE-2026-4408 CVE-2026-4480
CVSS scores:	CVE-2026-2340 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-2340 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2026-3238 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-4408 ( SUSE ): 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-4408 ( SUSE ): 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2026-4480 ( SUSE ): 10.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-4480 ( SUSE ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2026-4480 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Availability Extension 12 SP5 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 12 SP5 LTSS SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves four vulnerabilities can now be installed.

Description:

This update for samba fixes the following issues

• CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
• CVE-2026-3238: unauthenticated udp packet crashes AD DC nbt server (bsc#1261160).
• CVE-2026-4408: Remote Code Execution in SAMR (bsc#1261163).
• CVE-2026-4480: Unauthenticated Remote Code Execution (bsc#1261161).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Enterprise Server for SAP Applications 12 SP5
  zypper in -t patch SUSE-SLE-HA-12-SP5-2026-2073=1
• SUSE Linux Enterprise High Availability Extension 12 SP5
  zypper in -t patch SUSE-SLE-HA-12-SP5-2026-2073=1
• SUSE Linux Enterprise Server 12 SP5 LTSS
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2073=1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2073=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (ppc64le x86_64)
  • samba-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • ctdb-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • ctdb-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-debugsource-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise High Availability Extension 12 SP5 (ppc64le s390x x86_64)
  • samba-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • ctdb-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • ctdb-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-debugsource-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • samba-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-ldb-ldap-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-tool-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-debugsource-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy-python3-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-ldb-ldap-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (noarch)
  • samba-doc-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS (s390x x86_64)
  • samba-client-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-devel-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
  • samba-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-devel-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-ldb-ldap-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-tool-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-debugsource-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-libs-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy-python3-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-python3-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-debuginfo-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-winbind-libs-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-ldb-ldap-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy-devel-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-libs-python3-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • samba-client-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
  • libsamba-policy0-python3-debuginfo-32bit-4.15.13+git.701.449cb7f5cd3-3.106.1
• SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
  • samba-doc-4.15.13+git.701.449cb7f5cd3-3.106.1

References:

• https://www.suse.com/security/cve/CVE-2026-2340.html
• https://www.suse.com/security/cve/CVE-2026-3238.html
• https://www.suse.com/security/cve/CVE-2026-4408.html
• https://www.suse.com/security/cve/CVE-2026-4480.html
• https://bugzilla.suse.com/show_bug.cgi?id=1261158
• https://bugzilla.suse.com/show_bug.cgi?id=1261160
• https://bugzilla.suse.com/show_bug.cgi?id=1261161
• https://bugzilla.suse.com/show_bug.cgi?id=1261163