vulnerability
Gentoo Linux: CVE-2022-2601: GRUB: Multiple Vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Dec 14, 2022 | Nov 27, 2023 | Jan 28, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Dec 14, 2022
Added
Nov 27, 2023
Modified
Jan 28, 2025
Description
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
Solution
gentoo-linux-upgrade-sys-boot-grub
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