{"id":"ALSA-2023:0049","summary":"Moderate: grub2 security update","details":"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.\n\nSecurity Fix(es):\n\n* grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass (CVE-2022-2601)\n* grub2: Heap based out-of-bounds write when redering certain unicode sequences (CVE-2022-3775)\n\nFor 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.","modified":"2026-01-30T01:08:47.492041Z","published":"2023-01-09T00:00:00Z","related":["CVE-2022-2601","CVE-2022-3775"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:0049"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-2601"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-3775"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2112975"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2138880"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2023-0049.html"}],"affected":[{"package":{"name":"grub2-common","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-common"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-aa64","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-aa64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-aa64-cdboot","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-aa64-cdboot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-aa64-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-aa64-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-ia32","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-ia32"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-ia32-cdboot","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-ia32-cdboot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-ia32-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-ia32-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-x64","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-x64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-x64-cdboot","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-x64-cdboot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-efi-x64-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-efi-x64-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-pc","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-pc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-pc-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-pc-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"package":{"name":"grub2-ppc64le","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/grub2-ppc64le"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.02-142.el8_7.1.alma"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2023:0049.json"}},{"packa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