Security update for grub2

Announcement ID:	SUSE-SU-2022:2064-1
Rating:	important
References:	bsc#1191184 bsc#1191185 bsc#1191186 bsc#1193282 bsc#1197948 bsc#1198460 bsc#1198493 bsc#1198495 bsc#1198496 bsc#1198581
Cross-References:	CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735 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-2022-28735 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2022-28735 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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:	Basesystem Module 15-SP3 openSUSE Leap 15.3 Server Applications Module 15-SP3 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2 SUSE Linux Enterprise Real Time 15 SP3 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 SP3 SUSE Manager Proxy 4.2 SUSE Manager Proxy 4.2 Module 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2

An update that solves seven vulnerabilities and has three 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-2022-28735: Fixed some verifier framework changes (bsc#1198495)
• 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

• Use boot disks in OpenFirmware, fixing regression caused when the root LV is completely in the boot LUN (bsc#1197948)

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:

• openSUSE Leap 15.3
  zypper in -t patch SUSE-2022-2064=1
• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-2064=1
• Server Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-2064=1
• SUSE Manager Proxy 4.2 Module 4.2
  zypper in -t patch SUSE-SLE-Module-SUSE-Manager-Proxy-4.2-2022-2064=1
• SUSE Linux Enterprise Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-2064=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-2064=1

Package List:

• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
  • grub2-2.04-150300.22.20.2
  • grub2-branding-upstream-2.04-150300.22.20.2
  • grub2-debuginfo-2.04-150300.22.20.2
• openSUSE Leap 15.3 (aarch64 s390x x86_64 i586)
  • grub2-debugsource-2.04-150300.22.20.2
• openSUSE Leap 15.3 (noarch)
  • grub2-systemd-sleep-plugin-2.04-150300.22.20.2
  • grub2-i386-pc-2.04-150300.22.20.2
  • grub2-i386-xen-2.04-150300.22.20.2
  • grub2-x86_64-efi-debug-2.04-150300.22.20.2
  • grub2-arm64-efi-debug-2.04-150300.22.20.2
  • grub2-x86_64-efi-2.04-150300.22.20.2
  • grub2-powerpc-ieee1275-debug-2.04-150300.22.20.2
  • grub2-snapper-plugin-2.04-150300.22.20.2
  • grub2-x86_64-xen-2.04-150300.22.20.2
  • grub2-arm64-efi-2.04-150300.22.20.2
  • grub2-i386-pc-debug-2.04-150300.22.20.2
  • grub2-powerpc-ieee1275-2.04-150300.22.20.2
  • grub2-i386-efi-debug-2.04-150300.22.20.2
  • grub2-i386-efi-2.04-150300.22.20.2
• openSUSE Leap 15.3 (s390x)
  • grub2-s390x-emu-debug-2.04-150300.22.20.2
  • grub2-s390x-emu-2.04-150300.22.20.2
• Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • grub2-2.04-150300.22.20.2
  • grub2-debuginfo-2.04-150300.22.20.2
• Basesystem Module 15-SP3 (noarch)
  • grub2-systemd-sleep-plugin-2.04-150300.22.20.2
  • grub2-i386-pc-2.04-150300.22.20.2
  • grub2-x86_64-efi-2.04-150300.22.20.2
  • grub2-arm64-efi-2.04-150300.22.20.2
  • grub2-snapper-plugin-2.04-150300.22.20.2
  • grub2-powerpc-ieee1275-2.04-150300.22.20.2
• Basesystem Module 15-SP3 (aarch64 s390x x86_64)
  • grub2-debugsource-2.04-150300.22.20.2
• Basesystem Module 15-SP3 (s390x)
  • grub2-s390x-emu-2.04-150300.22.20.2
• Server Applications Module 15-SP3 (noarch)
  • grub2-x86_64-xen-2.04-150300.22.20.2
• SUSE Manager Proxy 4.2 Module 4.2 (noarch)
  • grub2-arm64-efi-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
  • grub2-debugsource-2.04-150300.22.20.2
  • grub2-2.04-150300.22.20.2
  • grub2-debuginfo-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro 5.2 (noarch)
  • grub2-i386-pc-2.04-150300.22.20.2
  • grub2-x86_64-efi-2.04-150300.22.20.2
  • grub2-arm64-efi-2.04-150300.22.20.2
  • grub2-x86_64-xen-2.04-150300.22.20.2
  • grub2-snapper-plugin-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro 5.2 (s390x)
  • grub2-s390x-emu-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
  • grub2-debugsource-2.04-150300.22.20.2
  • grub2-2.04-150300.22.20.2
  • grub2-debuginfo-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro for Rancher 5.2 (noarch)
  • grub2-i386-pc-2.04-150300.22.20.2
  • grub2-x86_64-efi-2.04-150300.22.20.2
  • grub2-arm64-efi-2.04-150300.22.20.2
  • grub2-x86_64-xen-2.04-150300.22.20.2
  • grub2-snapper-plugin-2.04-150300.22.20.2
• SUSE Linux Enterprise Micro for Rancher 5.2 (s390x)
  • grub2-s390x-emu-2.04-150300.22.20.2

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-2022-28735.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=1197948
• 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=1198495
• https://bugzilla.suse.com/show_bug.cgi?id=1198496
• https://bugzilla.suse.com/show_bug.cgi?id=1198581