Security update for grub2

Announcement ID:	SUSE-SU-2022:2036-1
Rating:	important
References:	bsc#1191184 bsc#1191185 bsc#1191186 bsc#1193282 bsc#1198460 bsc#1198493 bsc#1198496 bsc#1198581
Cross-References:	CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2022-28733 CVE-2022-28734 CVE-2022-28736
CVSS scores:	CVE-2021-3695 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2021-3695 ( NVD ): 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L CVE-2021-3696 ( SUSE ): 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2021-3696 ( NVD ): 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L CVE-2021-3697 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2021-3697 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-28733 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2022-28733 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2022-28734 ( SUSE ): 7.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H CVE-2022-28734 ( NVD ): 7.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H CVE-2022-28736 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2022-28736 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise High Performance Computing 15 LTSS 15 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server 15 LTSS 15 SUSE Linux Enterprise Server ESPOS 15 SUSE Linux Enterprise Server for SAP Applications 15

An update that solves six vulnerabilities and has two security fixes can now be installed.

Description:

This update for grub2 fixes the following issues:

Security fixes and hardenings for boothole 3 / boothole 2022 (bsc#1198581)

• CVE-2021-3695: Fixed that a crafted PNG grayscale image could lead to out-of-bounds write in heap (bsc#1191184)
• CVE-2021-3696: Fixed that a crafted PNG image could lead to out-of-bound write during huffman table handling (bsc#1191185)
• CVE-2021-3697: Fixed that a crafted JPEG image could lead to buffer underflow write in the heap (bsc#1191186)
• CVE-2022-28733: Fixed fragmentation math in net/ip (bsc#1198460)
• CVE-2022-28734: Fixed an out-of-bound write for split http headers (bsc#1198493)

• CVE-2022-28736: Fixed a use-after-free in chainloader command (bsc#1198496)

• Update SBAT security contact (bsc#1193282)

• Bump grub's SBAT generation to 2

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:

• SUSE Linux Enterprise Server ESPOS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2022-2036=1
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2022-2036=1
• SUSE Linux Enterprise Server 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-SLES-15-2022-2036=1
• SUSE Linux Enterprise Server for SAP Applications 15
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-2036=1

Package List:

• SUSE Linux Enterprise Server ESPOS 15 (aarch64 x86_64)
  • grub2-debuginfo-2.02-150000.122.12.2
  • grub2-2.02-150000.122.12.2
  • grub2-debugsource-2.02-150000.122.12.2
• SUSE Linux Enterprise Server ESPOS 15 (aarch64)
  • grub2-arm64-efi-2.02-150000.122.12.2
• SUSE Linux Enterprise Server ESPOS 15 (noarch)
  • grub2-systemd-sleep-plugin-2.02-150000.122.12.2
  • grub2-snapper-plugin-2.02-150000.122.12.2
• SUSE Linux Enterprise Server ESPOS 15 (x86_64)
  • grub2-x86_64-efi-2.02-150000.122.12.2
  • grub2-x86_64-xen-2.02-150000.122.12.2
  • grub2-i386-pc-2.02-150000.122.12.2
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (aarch64 x86_64)
  • grub2-debuginfo-2.02-150000.122.12.2
  • grub2-2.02-150000.122.12.2
  • grub2-debugsource-2.02-150000.122.12.2
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (aarch64)
  • grub2-arm64-efi-2.02-150000.122.12.2
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (noarch)
  • grub2-systemd-sleep-plugin-2.02-150000.122.12.2
  • grub2-snapper-plugin-2.02-150000.122.12.2
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (x86_64)
  • grub2-x86_64-efi-2.02-150000.122.12.2
  • grub2-x86_64-xen-2.02-150000.122.12.2
  • grub2-i386-pc-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (aarch64 ppc64le s390x x86_64)
  • grub2-debuginfo-2.02-150000.122.12.2
  • grub2-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (aarch64)
  • grub2-arm64-efi-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (aarch64 s390x x86_64)
  • grub2-debugsource-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (noarch)
  • grub2-systemd-sleep-plugin-2.02-150000.122.12.2
  • grub2-snapper-plugin-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (s390x)
  • grub2-s390x-emu-2.02-150000.122.12.2
• SUSE Linux Enterprise Server 15 LTSS 15 (x86_64)
  • grub2-x86_64-efi-2.02-150000.122.12.2
  • grub2-x86_64-xen-2.02-150000.122.12.2
  • grub2-i386-pc-2.02-150000.122.12.2
• SUSE Linux Enterprise Server for SAP Applications 15 (ppc64le x86_64)
  • grub2-debuginfo-2.02-150000.122.12.2
  • grub2-2.02-150000.122.12.2
• SUSE Linux Enterprise Server for SAP Applications 15 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-150000.122.12.2
• SUSE Linux Enterprise Server for SAP Applications 15 (noarch)
  • grub2-systemd-sleep-plugin-2.02-150000.122.12.2
  • grub2-snapper-plugin-2.02-150000.122.12.2
• SUSE Linux Enterprise Server for SAP Applications 15 (x86_64)
  • grub2-x86_64-efi-2.02-150000.122.12.2
  • grub2-x86_64-xen-2.02-150000.122.12.2
  • grub2-debugsource-2.02-150000.122.12.2
  • grub2-i386-pc-2.02-150000.122.12.2

References:

• https://www.suse.com/security/cve/CVE-2021-3695.html
• https://www.suse.com/security/cve/CVE-2021-3696.html
• https://www.suse.com/security/cve/CVE-2021-3697.html
• https://www.suse.com/security/cve/CVE-2022-28733.html
• https://www.suse.com/security/cve/CVE-2022-28734.html
• https://www.suse.com/security/cve/CVE-2022-28736.html
• https://bugzilla.suse.com/show_bug.cgi?id=1191184
• https://bugzilla.suse.com/show_bug.cgi?id=1191185
• https://bugzilla.suse.com/show_bug.cgi?id=1191186
• https://bugzilla.suse.com/show_bug.cgi?id=1193282
• https://bugzilla.suse.com/show_bug.cgi?id=1198460
• https://bugzilla.suse.com/show_bug.cgi?id=1198493
• https://bugzilla.suse.com/show_bug.cgi?id=1198496
• https://bugzilla.suse.com/show_bug.cgi?id=1198581