VYPR
High severity7.1NVD Advisory· Published Dec 19, 2022· Updated Jun 17, 2026

CVE-2022-3775

CVE-2022-3775

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.

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Affected products

63

Patches

Vulnerability mechanics

References

2

News mentions

0

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