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SUSE: 2022:2073-1 Important: Grub2 Update Addresses Critical Threats

An update that solves 7 vulnerabilities and has 14 fixes is now available. . SUSE Security Update: Security update for grub2 ______________________________________________________________________________ Announcement ID: SUSE-SU-2022:2073-1 Rating: important References: #1071559 #1159205 #1179981 #1189769 #1189874 #1191184 #1191185 #1191186 #1191504 #1191974 #1192522 #1192622 #1193282 #1193532 #1195204 #1197948 #1198460 #1198493 #1198495 #1198496 #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-2021-3696 (SUSE): 5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/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-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-2022-28735 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2022-28736 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected Products: SUSE Linux Enterprise Micro 5.1 ______________________________________________________________________________ An update that solves 7 vulnerabilities and has 14 fixes is now available. 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 Other bugs fixed: - Use boot disks in OpenFirmware, fixing regression caused when the root LV is completely in the boot LUN (bsc#1197948) - Fix grub-install error when efi system partition is created as mdadm software raid1 device (bsc#1179981) (bsc#1195204) - Fix error in grub-install when linux root device is on lvm thin volume (bsc#1192622) (bsc#1191974) - Fix wrong default entry when booting snapshot (bsc#1159205) - Add support for simplefb (boo#1193532). - Fix error lvmid disk cannot be found after second disk added to the root volume group (bsc#1189874) (bsc#1071559) - Fix error /boot/grub2/locale/POSIX.gmo not found (bsc#1189769) - Fix unknown TPM error on buggy uefi firmware (bsc#1191504) - Fix arm64 kernel image not aligned on 64k boundary (bsc#1192522) 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 Micro 5.1: zypper in -t patch SUSE-SUSE-MicroOS-5.1-2022-2073=1 Package List: - SUSE Linux Enterprise Micro 5.1 (aarch64 s390x x86_64): grub2-2.04-150300.3.5.1 grub2-debuginfo-2.04-150300.3.5.1 grub2-debugsource-2.04-150300.3.5.1 - SUSE Linux Enterprise Micro 5.1 (noarch): grub2-arm64-efi-2.04-150300.3.5.1 grub2-i386-pc-2.04-150300.3.5.1 grub2-snapper-plugin-2.04-150300.3.5.1 grub2-x86_64-efi-2.04-150300.3.5.1 grub2-x86_64-xen-2.04-150300.3.5.1 - SUSE Linux Enterprise Micro5.1 (s390x): grub2-s390x-emu-2.04-150300.3.5.1 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/1071559 https://bugzilla.suse.com/1159205 https://bugzilla.suse.com/1179981 https://bugzilla.suse.com/1189769 https://bugzilla.suse.com/1189874 https://bugzilla.suse.com/1191184 https://bugzilla.suse.com/1191185 https://bugzilla.suse.com/1191186 https://bugzilla.suse.com/1191504 https://bugzilla.suse.com/1191974 https://bugzilla.suse.com/1192522 https://bugzilla.suse.com/1192622 https://bugzilla.suse.com/1193282 https://bugzilla.suse.com/1193532 https://bugzilla.suse.com/1195204 https://bugzilla.suse.com/1197948 https://bugzilla.suse.com/1198460 https://bugzilla.suse.com/1198493 https://bugzilla.suse.com/1198495 https://bugzilla.suse.com/1198496 https://bugzilla.suse.com/1198581 . A fresh SUSE Security Update has remedied significant issues in grub2, tackling critical vulnerabilities. Ensure your system's safety!. SUSE Linux Security, Grub2 Update, System Security, Micro OS Fixes, Security Update. . Severity: Important. LinuxSecurity.com Team

Jun 14, 2022 •Important SuSE