🛡️ CVE-2022-2601
🟠 CVSS 8.6 — High ✅ No Known Exploit CWE-122 NVD
8.6
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.6
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE CWE-122
Public Exploit ✅ No
Source NVD
Published 2022-12-14
Updated 2026-06-08
Modified 2026-05-27
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux-eus
enterprise-linux-for-power-little-endian-eus
enterprise-linux-server-aus
enterprise-linux-server-for-power-little-endian-update-services-for-sap-solutions
enterprise-linux-server-tus
enterprise-linux-server-update-services-for-sap-solutions
fedora
grub2 2.06

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