-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: grub2 security update Advisory ID: RHSA-2023:0752-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:0752 Issue date: 2023-02-14 CVE Names: CVE-2022-2601 CVE-2022-3775 ==================================================================== 1. Summary: An update for grub2 is now available for Red Hat Enterprise Linux 9. 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 (v. 9) - 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 (v. 9): Source: grub2-2.06-46.el9_1.3.src.rpm aarch64: grub2-debuginfo-2.06-46.el9_1.3.aarch64.rpm grub2-debugsource-2.06-46.el9_1.3.aarch64.rpm grub2-efi-aa64-2.06-46.el9_1.3.aarch64.rpm grub2-efi-aa64-cdboot-2.06-46.el9_1.3.aarch64.rpm grub2-emu-debuginfo-2.06-46.el9_1.3.aarch64.rpm grub2-tools-2.06-46.el9_1.3.aarch64.rpm grub2-tools-debuginfo-2.06-46.el9_1.3.aarch64.rpm grub2-tools-extra-2.06-46.el9_1.3.aarch64.rpm grub2-tools-extra-debuginfo-2.06-46.el9_1.3.aarch64.rpm grub2-tools-minimal-2.06-46.el9_1.3.aarch64.rpm grub2-tools-minimal-debuginfo-2.06-46.el9_1.3.aarch64.rpm noarch: grub2-common-2.06-46.el9_1.3.noarch.rpm grub2-efi-aa64-modules-2.06-46.el9_1.3.noarch.rpm grub2-efi-x64-modules-2.06-46.el9_1.3.noarch.rpm grub2-pc-modules-2.06-46.el9_1.3.noarch.rpm grub2-ppc64le-modules-2.06-46.el9_1.3.noarch.rpm ppc64le: grub2-debuginfo-2.06-46.el9_1.3.ppc64le.rpm grub2-debugsource-2.06-46.el9_1.3.ppc64le.rpm grub2-ppc64le-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-debuginfo-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-extra-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-extra-debuginfo-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-minimal-2.06-46.el9_1.3.ppc64le.rpm grub2-tools-minimal-debuginfo-2.06-46.el9_1.3.ppc64le.rpm x86_64: grub2-debuginfo-2.06-46.el9_1.3.x86_64.rpm grub2-debugsource-2.06-46.el9_1.3.x86_64.rpm grub2-efi-x64-2.06-46.el9_1.3.x86_64.rpm grub2-efi-x64-cdboot-2.06-46.el9_1.3.x86_64.rpm grub2-emu-debuginfo-2.06-46.el9_1.3.x86_64.rpm grub2-pc-2.06-46.el9_1.3.x86_64.rpm grub2-tools-2.06-46.el9_1.3.x86_64.rpm grub2-tools-debuginfo-2.06-46.el9_1.3.x86_64.rpm grub2-tools-efi-2.06-46.el9_1.3.x86_64.rpm grub2-tools-efi-debuginfo-2.06-46.el9_1.3.x86_64.rpm grub2-tools-extra-2.06-46.el9_1.3.x86_64.rpm grub2-tools-extra-debuginfo-2.06-46.el9_1.3.x86_64.rpm grub2-tools-minimal-2.06-46.el9_1.3.x86_64.rpm grub2-tools-minimal-debuginfo-2.06-46.el9_1.3.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 2023 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY+t+gNzjgjWX9erEAQijWQ/+LCcy8IXeiZ0H4+JSizvQXh8x7L0TV5U8 kJvsdU04HRQ7gYy81T5AE/2LXFFr2QKc3qKulFztOJxr0kxEI+8IXoIY+h/s4JlW 0gxMcZwSUBW0ihdCyYAJ8icL5npsGuawBAXO4Rp6a1wtvzwKpgm9SxfozaB0rtUy 8a/YEW7dKVW831SGrAMvbJ39xQYblyUwUfHqsjup/EJ/Z1Ykq9pzEK24DGQXUrPR MbPQSJJRoIiTXxpbH3tU8zHlBfP0kejydNcO1nDHactyHcR1Zs7jmQhyZNHnWLtz eq3k5jj7KNaMoaglzU0DBsGuyd3j6yGyC6EJCf6308qqyEDYOIjQ/59hXFYj4chd kzYg1a9j2awIHtNJ9xrWuL0fRAOoYKSEmqX0/XuU9uaKVbBmjs6rvhbIItznozvc FiD33mmljJJX4EdoFCeGjSv8CJH5c+oLJqmdh3f290vzDQk3taH7iQkh/g8z3Clp pd8lASAFwGe6t9XQuv7nCX/jLgknIwdpn0HaOH+biFqr4xOyVJ8UQ4N9hRwtUC/n wKmV1P6n3n2u5/IlwDvFWOjBj8AMmOJGL+KmsN6uMuOBJ3zT/UMHNcsfKphbmpZT 1RFbawRlhTxz8NTi9alY7By1aD6hxCmarvwpE8P/917DSBu+CvDUvHo9ozptIRC1 Kuy+Tsgf6SQ=zBoJ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce