SUSE-SU-2026:22977-1: important: Security update for samba

Mon Aug 3 16:44:51 UTC 2026

# Security update for samba

Announcement ID: SUSE-SU-2026:22977-1  
Release Date: 2026-07-29T04:52:51Z  
Rating: important  
References:

  * bsc#1271469
  * bsc#1271672
  * bsc#1271673
  * bsc#1271674
  * bsc#1271675
  * bsc#1271676
  * bsc#1271677

Cross-References:

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

CVSS scores:

  * CVE-2026-15779 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-15779 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-15779 ( NVD ):  6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-58216 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-58216 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-58216 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-58218 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-58218 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-58218 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-58221 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-58221 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-58222 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-58222 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-58222 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-58224 ( SUSE ):  7.1
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-58224 ( SUSE ):  7.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-6949 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-6949 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Products:

  * SUSE Linux Micro 6.2

An update that solves seven vulnerabilities can now be installed.

## Description:

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).

## 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-6.2-1386=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * samba-client-libs-4.22.9+git.538.af6cb4fb2e-160000.1.1
    * libldb2-4.22.9+git.538.af6cb4fb2e-160000.1.1
    * libldb2-debuginfo-4.22.9+git.538.af6cb4fb2e-160000.1.1
    * samba-client-libs-debuginfo-4.22.9+git.538.af6cb4fb2e-160000.1.1
    * samba-debuginfo-4.22.9+git.538.af6cb4fb2e-160000.1.1
    * samba-debugsource-4.22.9+git.538.af6cb4fb2e-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-15779.html
  * https://www.suse.com/security/cve/CVE-2026-58216.html
  * https://www.suse.com/security/cve/CVE-2026-58218.html
  * https://www.suse.com/security/cve/CVE-2026-58221.html
  * https://www.suse.com/security/cve/CVE-2026-58222.html
  * https://www.suse.com/security/cve/CVE-2026-58224.html
  * https://www.suse.com/security/cve/CVE-2026-6949.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271469
  * https://bugzilla.suse.com/show_bug.cgi?id=1271672
  * https://bugzilla.suse.com/show_bug.cgi?id=1271673
  * https://bugzilla.suse.com/show_bug.cgi?id=1271674
  * https://bugzilla.suse.com/show_bug.cgi?id=1271675
  * https://bugzilla.suse.com/show_bug.cgi?id=1271676
  * https://bugzilla.suse.com/show_bug.cgi?id=1271677

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