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.

nessus 47

veracode 1

photon 4

cbl_mariner 3

ubuntucve 1

prion 1

debiancve 1

cve 1

redhat 11

oraclelinux 4

redhatcve 1

openvas 27