Security update for krb5

Announcement ID: SUSE-SU-2021:3454-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2021-37750 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-37750 ( NVD ): 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-SP2
  • Basesystem Module 15-SP3
  • Server Applications Module 15-SP2
  • Server Applications Module 15-SP3
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise Desktop 15 SP3
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP3
  • SUSE Linux Enterprise Micro 5.0
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP3
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server 15 SP3
  • SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • SUSE Manager Proxy 4.1
  • SUSE Manager Proxy 4.2
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Retail Branch Server 4.2
  • SUSE Manager Server 4.1
  • SUSE Manager Server 4.2

An update that solves one vulnerability can now be installed.

Description:

This update for krb5 fixes the following issues:

  • CVE-2021-37750: Fixed KDC null pointer dereference via a FAST inner body that lacks a server field (bsc#1189929).

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:

  • Basesystem Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-3454=1
  • Basesystem Module 15-SP3
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-3454=1
  • Server Applications Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-3454=1
  • Server Applications Module 15-SP3
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2021-3454=1
  • SUSE Linux Enterprise Micro 5.0
    zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-3454=1

Package List:

  • Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • krb5-1.16.3-3.24.1
    • krb5-debugsource-1.16.3-3.24.1
    • krb5-devel-1.16.3-3.24.1
    • krb5-plugin-preauth-pkinit-debuginfo-1.16.3-3.24.1
    • krb5-plugin-preauth-otp-debuginfo-1.16.3-3.24.1
    • krb5-plugin-preauth-otp-1.16.3-3.24.1
    • krb5-plugin-preauth-pkinit-1.16.3-3.24.1
    • krb5-client-debuginfo-1.16.3-3.24.1
    • krb5-debuginfo-1.16.3-3.24.1
    • krb5-client-1.16.3-3.24.1
  • Basesystem Module 15-SP2 (x86_64)
    • krb5-32bit-debuginfo-1.16.3-3.24.1
    • krb5-32bit-1.16.3-3.24.1
  • Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
    • krb5-1.16.3-3.24.1
    • krb5-debugsource-1.16.3-3.24.1
    • krb5-devel-1.16.3-3.24.1
    • krb5-plugin-preauth-pkinit-debuginfo-1.16.3-3.24.1
    • krb5-plugin-preauth-otp-debuginfo-1.16.3-3.24.1
    • krb5-plugin-preauth-otp-1.16.3-3.24.1
    • krb5-plugin-preauth-pkinit-1.16.3-3.24.1
    • krb5-client-debuginfo-1.16.3-3.24.1
    • krb5-debuginfo-1.16.3-3.24.1
    • krb5-client-1.16.3-3.24.1
  • Basesystem Module 15-SP3 (x86_64)
    • krb5-32bit-debuginfo-1.16.3-3.24.1
    • krb5-32bit-1.16.3-3.24.1
  • Server Applications Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • krb5-debugsource-1.16.3-3.24.1
    • krb5-server-1.16.3-3.24.1
    • krb5-server-debuginfo-1.16.3-3.24.1
    • krb5-plugin-kdb-ldap-debuginfo-1.16.3-3.24.1
    • krb5-debuginfo-1.16.3-3.24.1
    • krb5-plugin-kdb-ldap-1.16.3-3.24.1
  • Server Applications Module 15-SP3 (aarch64 ppc64le s390x x86_64)
    • krb5-debugsource-1.16.3-3.24.1
    • krb5-server-1.16.3-3.24.1
    • krb5-server-debuginfo-1.16.3-3.24.1
    • krb5-plugin-kdb-ldap-debuginfo-1.16.3-3.24.1
    • krb5-debuginfo-1.16.3-3.24.1
    • krb5-plugin-kdb-ldap-1.16.3-3.24.1
  • SUSE Linux Enterprise Micro 5.0 (aarch64 x86_64)
    • krb5-1.16.3-3.24.1
    • krb5-debuginfo-1.16.3-3.24.1
    • krb5-debugsource-1.16.3-3.24.1

References: