vulnerability
Rocky Linux: CVE-2022-3775: grub2 (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:N/I:C/A:C) | Dec 19, 2022 | Mar 12, 2024 | Aug 13, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:C)
Published
Dec 19, 2022
Added
Mar 12, 2024
Modified
Aug 13, 2025
Description
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
Solutions
rocky-upgrade-grub2-debuginforocky-upgrade-grub2-debugsourcerocky-upgrade-grub2-efi-ia32rocky-upgrade-grub2-efi-ia32-cdbootrocky-upgrade-grub2-efi-x64rocky-upgrade-grub2-efi-x64-cdbootrocky-upgrade-grub2-pcrocky-upgrade-grub2-toolsrocky-upgrade-grub2-tools-debuginforocky-upgrade-grub2-tools-efirocky-upgrade-grub2-tools-efi-debuginforocky-upgrade-grub2-tools-extrarocky-upgrade-grub2-tools-extra-debuginforocky-upgrade-grub2-tools-minimalrocky-upgrade-grub2-tools-minimal-debuginfo
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