Security update for samba

Announcement ID: SUSE-SU-2026:22045-1
Release Date: 2026-06-05T08:34:04Z
Rating: critical
References:
Cross-References:
CVSS scores:
  • CVE-2026-1933 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-1933 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  • CVE-2026-1933 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  • CVE-2026-1933 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  • 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-2026-2340 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  • CVE-2026-3012 ( SUSE ): 7.6 CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-3012 ( SUSE ): 8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
  • CVE-2026-3012 ( NVD ): 6.8 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  • CVE-2026-3012 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/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-2026-3238 ( NVD ): 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-2026-4408 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-4408 ( NVD ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/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 ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-4480 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Micro 6.2

An update that solves six vulnerabilities and has five fixes can now be installed.

Description:

This update for samba fixes the following issues

Security issues:

  • CVE-2026-1933: Missing access check on reparse point operations (bsc#1261188).
  • CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
  • CVE-2026-3012: group policy certificate enrollment uses http: // without validation (bsc#1261159).
  • 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).

Changes for samba:

  • network:samba:STABLE/samba: "use-kerberos=desired" broken / Dolphin requires login for Samba shares (bsc#1255755).
  • Samba service start times out (SElinux relabel takes too long) (bsc#1259050).
  • samba-ad-dc-libs packages is missing a DLZ plugin for bind 9.20 (bsc#1249058).
  • VFS_Snapper does not show previous file versions in subdirectories. (bsc#1259667).
  • Updated to 4.22.9

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 Micro 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-890=1

Package List:

  • SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    • samba-client-libs-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1
    • samba-debugsource-4.22.9+git.506.22c03ce0781-160000.1.1
    • libldb2-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1
    • libldb2-4.22.9+git.506.22c03ce0781-160000.1.1
    • samba-client-libs-4.22.9+git.506.22c03ce0781-160000.1.1
    • samba-debuginfo-4.22.9+git.506.22c03ce0781-160000.1.1

References: