Security update for grub2

Announcement ID: SUSE-SU-2020:2306-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-15705 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-15705 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • Basesystem Module 15-SP2
  • Server Applications Module 15-SP2
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1

An update that solves one vulnerability and has one security fix can now be installed.

Description:

This update for grub2 fixes the following issue:

  • CVE-2020-15705: Fail kernel validation without shim protocol (bsc#1174421).
  • Add fibre channel device's ofpath support to grub-ofpathname and search hint to speed up root device discovery (bsc#1172745).

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-SP2-2020-2306=1
  • Server Applications Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2020-2306=1

Package List:

  • Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • grub2-debuginfo-2.04-9.15.1
    • grub2-2.04-9.15.1
  • Basesystem Module 15-SP2 (noarch)
    • grub2-arm64-efi-2.04-9.15.1
    • grub2-snapper-plugin-2.04-9.15.1
    • grub2-i386-pc-2.04-9.15.1
    • grub2-powerpc-ieee1275-2.04-9.15.1
    • grub2-x86_64-efi-2.04-9.15.1
    • grub2-systemd-sleep-plugin-2.04-9.15.1
  • Basesystem Module 15-SP2 (aarch64 s390x x86_64)
    • grub2-debugsource-2.04-9.15.1
  • Basesystem Module 15-SP2 (s390x)
    • grub2-s390x-emu-2.04-9.15.1
  • Server Applications Module 15-SP2 (noarch)
    • grub2-x86_64-xen-2.04-9.15.1

References: