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.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2022-12-14T00:00:00

Updated: 2023-11-25T12:06:24.538109

Reserved: 2022-08-01T00:00:00


Link: CVE-2022-2601

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2022-12-14T21:15:10.190

Modified: 2023-11-25T12:15:07.167


Link: CVE-2022-2601

JSON object: View

cve-icon Redhat Information

No data.

CWE