Security update for grub2

SUSE Security Update: Security update for grub2
Announcement ID: SUSE-SU-2020:2077-1
Rating: important
References: #1168994 #1173812 #1174463 #1174570
Cross-References:CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15706 CVE-2020-15707
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15-SP1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1

An update that fixes 7 vulnerabilities is now available.

Description:

This update for grub2 fixes the following issues:

  • CVE-2020-10713 (bsc#1168994)
  • CVE-2020-14308 CVE-2020-14309, CVE-2020-14310, CVE-2020-14311 (bsc#1173812)
  • CVE-2020-15706 (bsc#1174463)
  • CVE-2020-15707 (bsc#1174570)

  • Use overflow checking primitives where the arithmetic expression for buffer allocations may include unvalidated data
  • Use grub_calloc for overflow check and return NULL when it would occur

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 Server Applications 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-2077=1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-2077=1

Package List:

  • SUSE Linux Enterprise Module for Server Applications 15-SP1 (noarch):
    • grub2-x86_64-xen-2.02-26.25.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le s390x x86_64):
    • grub2-2.02-26.25.1
    • grub2-debuginfo-2.02-26.25.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 s390x x86_64):
    • grub2-debugsource-2.02-26.25.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1 (noarch):
    • grub2-arm64-efi-2.02-26.25.1
    • grub2-i386-pc-2.02-26.25.1
    • grub2-powerpc-ieee1275-2.02-26.25.1
    • grub2-snapper-plugin-2.02-26.25.1
    • grub2-systemd-sleep-plugin-2.02-26.25.1
    • grub2-x86_64-efi-2.02-26.25.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1 (s390x):
    • grub2-s390x-emu-2.02-26.25.1

References: