SUSE-SU-2026:23251-1: moderate: Security update for sssd

[SLE-SECURITY-UPDATES]

# Security update for sssd

Announcement ID: SUSE-SU-2026:23251-1  
Release Date: 2026-08-21T14:49:31Z  
Rating: moderate  
References:

  * bsc#1273009
  * bsc#1273922
  * bsc#1273924
  * bsc#1273925

  
Cross-References:

  * CVE-2026-68742
  * CVE-2026-68743
  * CVE-2026-68744

  
CVSS scores:

  * CVE-2026-68742 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-68742 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-68742 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-68743 ( 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-2026-68743 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-68743 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-68743 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-68744 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-68744 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
  * CVE-2026-68744 ( NVD ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

  
Affected Products:

  * SUSE Linux Micro 6.0

  
  
An update that solves three vulnerabilities and has one fix can now be
installed.

## Description:

This update for sssd fixes the following issues:

  * CVE-2026-68742: insufficient validation in the NSS responder can lead to an
    out-of-bounds read and a process crash when a crafted GETHOSTBYADDR request
    is sent to the NSS responder socket (bsc#1273922).
  * CVE-2026-68743: insufficient validation in the PAM responder can lead to an
    out-of-bounds read and a process crash when a crafted protocol v1 request is
    processed (bsc#1273925).
  * CVE-2026-68744: improper memory management in the NSS responder can lead to
    uninitialized heap memory disclosure from the `sssd_nss` process
    (bsc#1273924).

## 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 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-860=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * libsss_idmap0-2.8.2-10.1
    * libsss_idmap0-debuginfo-2.8.2-10.1
    * sssd-ldap-debuginfo-2.8.2-10.1
    * sssd-krb5-common-debuginfo-2.8.2-10.1
    * sssd-tools-debuginfo-2.8.2-10.1
    * sssd-ad-debuginfo-2.8.2-10.1
    * sssd-dbus-debuginfo-2.8.2-10.1
    * sssd-debuginfo-2.8.2-10.1
    * libsss_certmap0-debuginfo-2.8.2-10.1
    * sssd-2.8.2-10.1
    * python3-sssd-config-2.8.2-10.1
    * python3-sssd-config-debuginfo-2.8.2-10.1
    * sssd-krb5-2.8.2-10.1
    * sssd-tools-2.8.2-10.1
    * sssd-dbus-2.8.2-10.1
    * sssd-krb5-debuginfo-2.8.2-10.1
    * libsss_nss_idmap0-2.8.2-10.1
    * libsss_nss_idmap0-debuginfo-2.8.2-10.1
    * sssd-ldap-2.8.2-10.1
    * libsss_certmap0-2.8.2-10.1
    * sssd-debugsource-2.8.2-10.1
    * sssd-krb5-common-2.8.2-10.1
    * sssd-ad-2.8.2-10.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-68742.html
  * https://www.suse.com/security/cve/CVE-2026-68743.html
  * https://www.suse.com/security/cve/CVE-2026-68744.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1273009
  * https://bugzilla.suse.com/show_bug.cgi?id=1273922
  * https://bugzilla.suse.com/show_bug.cgi?id=1273924
  * https://bugzilla.suse.com/show_bug.cgi?id=1273925

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