-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: grub2 security update Advisory ID: RHSA-2022:8494-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:8494 Issue date: 2022-11-16 CVE Names: CVE-2022-2601 CVE-2022-3775 ==================================================================== 1. Summary: An update for grub2 is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. 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 E4S (v. 8.1) - 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. 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 E4S (v. 8.1): Source: grub2-2.02-87.el8_1.11.src.rpm aarch64: grub2-debuginfo-2.02-87.el8_1.11.aarch64.rpm grub2-debugsource-2.02-87.el8_1.11.aarch64.rpm grub2-efi-aa64-2.02-87.el8_1.11.aarch64.rpm grub2-efi-aa64-cdboot-2.02-87.el8_1.11.aarch64.rpm grub2-tools-2.02-87.el8_1.11.aarch64.rpm grub2-tools-debuginfo-2.02-87.el8_1.11.aarch64.rpm grub2-tools-extra-2.02-87.el8_1.11.aarch64.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.11.aarch64.rpm grub2-tools-minimal-2.02-87.el8_1.11.aarch64.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.11.aarch64.rpm noarch: grub2-common-2.02-87.el8_1.11.noarch.rpm grub2-efi-aa64-modules-2.02-87.el8_1.11.noarch.rpm grub2-efi-ia32-modules-2.02-87.el8_1.11.noarch.rpm grub2-efi-x64-modules-2.02-87.el8_1.11.noarch.rpm grub2-pc-modules-2.02-87.el8_1.11.noarch.rpm grub2-ppc64le-modules-2.02-87.el8_1.11.noarch.rpm ppc64le: grub2-debuginfo-2.02-87.el8_1.11.ppc64le.rpm grub2-debugsource-2.02-87.el8_1.11.ppc64le.rpm grub2-ppc64le-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-debuginfo-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-extra-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-minimal-2.02-87.el8_1.11.ppc64le.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.11.ppc64le.rpm x86_64: grub2-debuginfo-2.02-87.el8_1.11.x86_64.rpm grub2-debugsource-2.02-87.el8_1.11.x86_64.rpm grub2-efi-ia32-2.02-87.el8_1.11.x86_64.rpm grub2-efi-ia32-cdboot-2.02-87.el8_1.11.x86_64.rpm grub2-efi-x64-2.02-87.el8_1.11.x86_64.rpm grub2-efi-x64-cdboot-2.02-87.el8_1.11.x86_64.rpm grub2-pc-2.02-87.el8_1.11.x86_64.rpm grub2-tools-2.02-87.el8_1.11.x86_64.rpm grub2-tools-debuginfo-2.02-87.el8_1.11.x86_64.rpm grub2-tools-efi-2.02-87.el8_1.11.x86_64.rpm grub2-tools-efi-debuginfo-2.02-87.el8_1.11.x86_64.rpm grub2-tools-extra-2.02-87.el8_1.11.x86_64.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.11.x86_64.rpm grub2-tools-minimal-2.02-87.el8_1.11.x86_64.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.11.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 iQIVAwUBY3TdyNzjgjWX9erEAQiEshAAib56xO7sRXwIM3waFbxLUNnCK9FCTj4u 5B1pMVpJCDEjK7YnMJswzAOlFNWAtkW2HPmVNWrkuaggE9X2MOcQ3DRuiYwh5osl nSjrIsMfIoNxKmzaTMHMCWeUrqrgXT62QWK7DTeWbzslEY7nkDe2A+FAaNvM9+8m SG98wI5aViLl8l/iIdairnah9ErZK0qaLNhRG/RcAtbV3tOT7pVTON4m/+Nq169o UPNdM4n+krTaRgPh44iFiBMMWUQrx0i9bbaZyEBuc/KrmrRJeH3IpkTbelkebAZ/ WHOHTl2tZxTfs2XXsWnwsiRi+dibZo2yyDpkHUv3RUtGv2i8wh1nBegU7cu2y9x5 KYAME6cMZSzanYsI3BQS3fBCrJDFibq0e6FIHPS/f3gvzKO6enXk8UxiOx7mU5qD FDLXk1xByLyaZyuWGQsuUMyW0C1kv2EVejzU8bDukBqveViVxqTqYchudjNLTX5/ ekg2URtEhkXdsZ+zXt5896+pcfvZhaM1lQsYd+IE0qwmTxwlXPnPeAT+hqvkcaXS uTLvlRjX1Sm+0U4CE7FuQ8UpdVstjgz5szaY95DTgR/Pgz23P50BCtbIF44sG2Ny 2RurgVM10rUaqubclHVBI2pQ3bswdTybBLcQlm7R2gSJUFz7Nh+RorKdPb+JdRcB xkkoPjoK7dY=nLp7 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce