VDB
DEBIAN-CVE-2022-3775
DEBIAN-CVE-2022-3775
PUBLISHED
CVSS 7.099999904632568 HIGH
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.
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | grub2 | 2.06-2+hurd.6, 2.06-3~deb11u1, 2.06-3~deb11u2 |
| Debian:14 | grub2 | 0, 0, 0 |
| Debian:12 | grub2 | 0, 0, 0 |
| Debian:13 | grub2 | 0, 0, 0 |
Timeline
- Dec 19, 2022 CVE Published
- Apr 28, 2026 CVE Updated