SUSE-SU-2025:0401-1: moderate: Security update for crypto-policies, krb5

[SLE-SECURITY-UPDATES]

# Security update for crypto-policies, krb5

Announcement ID: SUSE-SU-2025:0401-1  
Release Date: 2025-02-10T09:38:40Z  
Rating: moderate  
References:

  * bsc#1236619
  * jsc#PED-12018

  
Cross-References:

  * CVE-2025-24528

  
CVSS scores:

  * CVE-2025-24528 ( 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-2025-24528 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * Basesystem Module 15-SP6
  * openSUSE Leap 15.6
  * Server Applications Module 15-SP6
  * SUSE Linux Enterprise Desktop 15 SP6
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves one vulnerability and contains one feature can now be
installed.

## Description:

This update for crypto-policies and krb5 fixes the following issues:

Security issue fixed:

  * CVE-2025-24528: Fixed out-of-bounds write caused by overflow when
    calculating ulog block size can lead to process crash (bsc#1236619).

Feature addition:

  * Add crypto-policies support; (jsc#PED-12018)

  * The default krb5.conf has been updated to include config snippets in the
    krb5.conf.d directory, where crypto-policies drops its.

  * Allow to use KRB5KDF in FIPS mode; (jsc#PED-12018);

  * This key derivation function is used by AES256-CTS-HMAC-SHA1-96 and
    AES128-CTS-HMAC-SHA1-96 encryption types, used by Active directory. If these
    encryption types are allowed or not in FIPS mode is enforced now by the
    FIPS:AD-SUPPORT subpolicy.

## 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:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2025-401=1 openSUSE-SLE-15.6-2025-401=1

  * Basesystem Module 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-401=1

  * Server Applications Module 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-401=1

## Package List:

  * openSUSE Leap 15.6 (noarch)
    * crypto-policies-20230920.570ea89-150600.3.3.1
    * crypto-policies-scripts-20230920.570ea89-150600.3.3.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * krb5-debugsource-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-pkinit-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-spake-1.20.1-150600.11.8.1
    * krb5-server-debuginfo-1.20.1-150600.11.8.1
    * krb5-mini-debuginfo-1.20.1-150600.11.8.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150600.11.8.1
    * krb5-mini-1.20.1-150600.11.8.1
    * krb5-mini-devel-1.20.1-150600.11.8.1
    * krb5-devel-1.20.1-150600.11.8.1
    * krb5-client-debuginfo-1.20.1-150600.11.8.1
    * krb5-debuginfo-1.20.1-150600.11.8.1
    * krb5-plugin-kdb-ldap-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-otp-1.20.1-150600.11.8.1
    * krb5-client-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-spake-debuginfo-1.20.1-150600.11.8.1
    * krb5-mini-debugsource-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150600.11.8.1
    * krb5-1.20.1-150600.11.8.1
    * krb5-server-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150600.11.8.1
  * openSUSE Leap 15.6 (x86_64)
    * krb5-32bit-1.20.1-150600.11.8.1
    * krb5-devel-32bit-1.20.1-150600.11.8.1
    * krb5-32bit-debuginfo-1.20.1-150600.11.8.1
  * openSUSE Leap 15.6 (aarch64_ilp32)
    * krb5-devel-64bit-1.20.1-150600.11.8.1
    * krb5-64bit-1.20.1-150600.11.8.1
    * krb5-64bit-debuginfo-1.20.1-150600.11.8.1
  * Basesystem Module 15-SP6 (noarch)
    * crypto-policies-20230920.570ea89-150600.3.3.1
    * crypto-policies-scripts-20230920.570ea89-150600.3.3.1
  * Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
    * krb5-debugsource-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-pkinit-1.20.1-150600.11.8.1
    * krb5-devel-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-otp-1.20.1-150600.11.8.1
    * krb5-debuginfo-1.20.1-150600.11.8.1
    * krb5-client-debuginfo-1.20.1-150600.11.8.1
    * krb5-client-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150600.11.8.1
    * krb5-1.20.1-150600.11.8.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150600.11.8.1
  * Basesystem Module 15-SP6 (x86_64)
    * krb5-32bit-1.20.1-150600.11.8.1
    * krb5-32bit-debuginfo-1.20.1-150600.11.8.1
  * Server Applications Module 15-SP6 (aarch64 ppc64le s390x x86_64)
    * krb5-debugsource-1.20.1-150600.11.8.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150600.11.8.1
    * krb5-plugin-kdb-ldap-1.20.1-150600.11.8.1
    * krb5-debuginfo-1.20.1-150600.11.8.1
    * krb5-server-1.20.1-150600.11.8.1
    * krb5-server-debuginfo-1.20.1-150600.11.8.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-24528.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1236619
  * https://jira.suse.com/browse/PED-12018

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