SUSE-SU-2023:0620-1: important: Security update for samba

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Mon Mar 6 12:30:21 UTC 2023 


# Security update for samba

Announcement ID: SUSE-SU-2023:0620-1  
Rating: important  
References:

  * #1205385
  * #1206504
  * #1206546

  
Cross-References:

  * CVE-2021-20251
  * CVE-2022-37966
  * CVE-2022-38023

  
CVSS scores:

  * CVE-2021-20251 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-37966 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-37966 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-38023 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-38023 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Enterprise Storage 7
  * SUSE Linux Enterprise Server 15 SP2

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for samba fixes the following issues:

  * CVE-2021-20251: Fixed bad password count that was not incremented atomically
    (bsc#1206546).
  * CVE-2022-38023: Fixed weak RC4/HMAC-MD5 NetLogon Secure Channel usage should
    be avoided (bsc#1206504).
  * CVE-2022-37966: Fixed privilege elevation vulnerability with option
    'kerberos encryption types = legacy' which would force RC4-HMAC as a client
    even if the server supports AES (bsc#1205385).

## Patch Instructions:

To install this SUSE Important 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 Enterprise Storage 7  
    zypper in -t patch SUSE-Storage-7-2023-620=1

## Package List:

  * SUSE Enterprise Storage 7 (aarch64 x86_64)
    * libndr1-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libwbclient0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbclient0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamdb0-4.13.13+git.616.557146479a-150200.3.21.1
    * libwbclient0-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-credentials0-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-client-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-passdb0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-client-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-libs-python3-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-libs-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-util0-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-libs-python3-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libnetapi0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libtevent-util0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-errors0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libdcerpc0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libdcerpc-binding0-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-krb5pac0-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-nbt0-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbclient0-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-debugsource-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamdb0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-credentials0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libtevent-util0-4.13.13+git.616.557146479a-150200.3.21.1
    * ctdb-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-winbind-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-util0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-passdb0-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbldap2-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbconf0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * ctdb-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-errors0-4.13.13+git.616.557146479a-150200.3.21.1
    * libdcerpc-binding0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-hostconfig0-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbldap2-4.13.13+git.616.557146479a-150200.3.21.1
    * libdcerpc0-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-nbt0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-ceph-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-libs-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-standard0-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-krb5pac0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr-standard0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libsmbconf0-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-ceph-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * samba-winbind-4.13.13+git.616.557146479a-150200.3.21.1
    * libndr1-4.13.13+git.616.557146479a-150200.3.21.1
    * libsamba-hostconfig0-debuginfo-4.13.13+git.616.557146479a-150200.3.21.1
    * libnetapi0-4.13.13+git.616.557146479a-150200.3.21.1

## References:

  * https://www.suse.com/security/cve/CVE-2021-20251.html
  * https://www.suse.com/security/cve/CVE-2022-37966.html
  * https://www.suse.com/security/cve/CVE-2022-38023.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1205385
  * https://bugzilla.suse.com/show_bug.cgi?id=1206504
  * https://bugzilla.suse.com/show_bug.cgi?id=1206546

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