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CVE-2022-2601

HIGH CVSS: 8.6 Published: 2022-12-14 Modified: 2026-06-17

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.

Affected Platforms

Redhat Enterprise Linux Server TusRedhat Enterprise Linux Server Update Services For Sap SolutionsRedhat Enterprise Linux EusGnu Grub2Fedoraproject FedoraRedhat Enterprise Linux Server AusRedhat Enterprise Linux Server For Power Little Endian Update Services For Sap SolutionsRedhat Enterprise Linux For Power Little Endian Eus

Weakness Type

CWE-122, CWE-122, CWE-787

References