-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: grub2 security and bug fix update Advisory ID: RHSA-2022:8978-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:8978 Issue date: 2022-12-13 CVE Names: CVE-2022-2601 CVE-2022-3775 ==================================================================== 1. Summary: An update for grub2 is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux BaseOS EUS (v.9.0) - aarch64, noarch, ppc64le, x86_64 3. Description: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. Security Fix(es): * grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass (CVE-2022-2601) * grub2: Heap based out-of-bounds write when redering certain unicode sequences (CVE-2022-3775) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Kernel Panic on Milan when enable SEV/SEV-ES with CPU: 1 PID: 1 Comm: swapper/0 Not tainted (BZ#2130104) * [RHEL9.0][SecureBoot][Denali/P10] boot process stops at grub prompt after copying the signed grub to prep partition (BZ#2134358) * RHEL9.0 [MAXconfig]: Denali LPAR crashs while booting MAX config 240c / 64TB - 192 decimal is the biggest partition min value Linux can handle? (BZ#2134434) * ISST-LTE:[P10]:RPT:After FW update,while activating the lpar dexlp87 went to ERROR state with LED B2008105 - 7E sub return code (BZ#2135288) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 2112975 - CVE-2022-2601 grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass 2138880 - CVE-2022-3775 grub2: Heap based out-of-bounds write when redering certain unicode sequences 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v.9.0): Source: grub2-2.06-27.el9_0.12.src.rpm aarch64: grub2-debuginfo-2.06-27.el9_0.12.aarch64.rpm grub2-debugsource-2.06-27.el9_0.12.aarch64.rpm grub2-efi-aa64-2.06-27.el9_0.12.aarch64.rpm grub2-efi-aa64-cdboot-2.06-27.el9_0.12.aarch64.rpm grub2-emu-debuginfo-2.06-27.el9_0.12.aarch64.rpm grub2-tools-2.06-27.el9_0.12.aarch64.rpm grub2-tools-debuginfo-2.06-27.el9_0.12.aarch64.rpm grub2-tools-extra-2.06-27.el9_0.12.aarch64.rpm grub2-tools-extra-debuginfo-2.06-27.el9_0.12.aarch64.rpm grub2-tools-minimal-2.06-27.el9_0.12.aarch64.rpm grub2-tools-minimal-debuginfo-2.06-27.el9_0.12.aarch64.rpm noarch: grub2-common-2.06-27.el9_0.12.noarch.rpm grub2-efi-aa64-modules-2.06-27.el9_0.12.noarch.rpm grub2-efi-x64-modules-2.06-27.el9_0.12.noarch.rpm grub2-pc-modules-2.06-27.el9_0.12.noarch.rpm grub2-ppc64le-modules-2.06-27.el9_0.12.noarch.rpm ppc64le: grub2-debuginfo-2.06-27.el9_0.12.ppc64le.rpm grub2-debugsource-2.06-27.el9_0.12.ppc64le.rpm grub2-ppc64le-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-debuginfo-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-extra-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-extra-debuginfo-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-minimal-2.06-27.el9_0.12.ppc64le.rpm grub2-tools-minimal-debuginfo-2.06-27.el9_0.12.ppc64le.rpm x86_64: grub2-debuginfo-2.06-27.el9_0.12.x86_64.rpm grub2-debugsource-2.06-27.el9_0.12.x86_64.rpm grub2-efi-x64-2.06-27.el9_0.12.x86_64.rpm grub2-efi-x64-cdboot-2.06-27.el9_0.12.x86_64.rpm grub2-emu-debuginfo-2.06-27.el9_0.12.x86_64.rpm grub2-pc-2.06-27.el9_0.12.x86_64.rpm grub2-tools-2.06-27.el9_0.12.x86_64.rpm grub2-tools-debuginfo-2.06-27.el9_0.12.x86_64.rpm grub2-tools-efi-2.06-27.el9_0.12.x86_64.rpm grub2-tools-efi-debuginfo-2.06-27.el9_0.12.x86_64.rpm grub2-tools-extra-2.06-27.el9_0.12.x86_64.rpm grub2-tools-extra-debuginfo-2.06-27.el9_0.12.x86_64.rpm grub2-tools-minimal-2.06-27.el9_0.12.x86_64.rpm grub2-tools-minimal-debuginfo-2.06-27.el9_0.12.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2022-2601 https://access.redhat.com/security/cve/CVE-2022-3775 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY5j9/NzjgjWX9erEAQjbZQ//a/froDILL6ZRBqxuscAjkZrWUPfPWEzw m7mLmI0/hIhR5bREv03E0PoLEhRFQrB0eggfcc1lOQGcNCDTazvuUsSaBU1ULUHV TVDcoTRPQl/NRnlfGPFvCn9Yz2rWYx9rkeI+rmHD7JBNewYDY1WdA/mmxp9RvV0X fxDtwLPfO7PauAe23oCJdmZh1GypZbk3nfS4unkYyu/PLPKiB+MMN/bpAjIqwrML xzwc/b/hVmJz3xg5qh+5/2+0P3Oug4hND72JZBYAtbuycCtEHzm29VoNMOOi+P9E ApJBiF/V9qyndwFKqi9pyyNtv5naRCcGdYdnUFRaknjF0DKxIsXBs+K1FREtiTDo LDXOUuLFe0KYPzY4sD9AMRaikuQWmV5oC0BE7w9bPvuFtXBSttwXkqHJ0D5kt0Da PRAXsIfcww0XV91LCui77mrjUPOlIfR0XfxMUrMdde0TJnnTi54DCNM0NJLKmoVV 83DQqi8Ln1xq+zG78muAgsLCwpB2tL45iyRzD6esZ3VlMbH6sDsOABKNZxJPD+UL MCPcvO2ypEBGSH/kppTU/SvKN2ijFPM2ZhV15UX4zI+TcAq1YKoQAdjwAqN39Ksk KVRCqno6wJbKREWTijUUM0x7XiLQB+gJ2Z869F6cXxaJ4teY7DprTQQ2xMKbz/lr KJfj48QotlU¨i1 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce