SUSE Security Update: Security update for s390-tools
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Announcement ID:    SUSE-SU-2021:0777-1
Rating:             important
References:         #1176574 #1182777 #1182876 #1183040 
Cross-References:   CVE-2021-25316
CVSS scores:
                    CVE-2021-25316 (SUSE): 6.1
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
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   An update that solves one vulnerability and has three fixes
   is now available.

Description:

   This update for s390-tools fixes the following issues:

   - Fixed an issue where IPL was not working when bootloader was installed
     on a SCSI disk with 4k physical blocksize without using a devicemapper
      target (bsc#1183041).
   - CVE-2021-25316: Do not use predictable temporary file names
     (bsc#1182777).
   - Made the name of the temporary configuration file in /tmp/ unpredictable
     (bsc#1182876).
   - Changing the scheduler from "deadline" to the newly created
     "mq-deadline" scheduler (bsc#1176574)


Patch Instructions:

   To install this SUSE Security 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 Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-777=1



Package List:

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (s390x):

      osasnmpd-2.11.0-9.20.1
      osasnmpd-debuginfo-2.11.0-9.20.1
      s390-tools-2.11.0-9.20.1
      s390-tools-debuginfo-2.11.0-9.20.1
      s390-tools-debugsource-2.11.0-9.20.1
      s390-tools-hmcdrvfs-2.11.0-9.20.1
      s390-tools-hmcdrvfs-debuginfo-2.11.0-9.20.1
      s390-tools-zdsfs-2.11.0-9.20.1
      s390-tools-zdsfs-debuginfo-2.11.0-9.20.1


References:

   https://www.suse.com/security/cve/CVE-2021-25316.html
   https://bugzilla.suse.com/1176574
   https://bugzilla.suse.com/1182777
   https://bugzilla.suse.com/1182876
   https://bugzilla.suse.com/1183040