GHSA-c8f6-x9xm-x27g
GitHub Security Advisory
⚠ Unreviewed
HIGH
Has CVE
Advisory Details
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.
Related CVEs
Key Information
7.5
/10
Dataset
Last updated: September 19, 2025 6:29 AM
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