VDB
DEBIAN-CVE-2022-2601
DEBIAN-CVE-2022-2601
PUBLISHED
CVSS 8.600000381469727 HIGH
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.
Risk Scores
CVSS 3.1
8.600000381469727
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | grub2 | 0, 0, 0 |
| Debian:14 | grub2 | 0, 0, 0 |
| Debian:11 | grub2 | 2.06-2, 2.06-2, 2.06-2 |
| Debian:13 | grub2 | 0, 0, 0 |
Exploit Intelligence
- cvrf.go (github-poc)
Timeline
- Dec 14, 2022 CVE Published
- Apr 28, 2026 CVE Updated