CVE-2022-2601 (GCVE-0-2022-2601)

Vulnerability from cvelistv5 – Published: 2022-12-14 00:00 – Updated: 2024-08-22 01:13
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a grub2 Affected: grub2 2.06 and lower
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.