SecuritySpace - CVE-2022-2601

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CVE ID: CVE-2022-2601

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.

Test IDs: 1.3.6.1.4.1.25623.1.1.2.2023.1317

Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2022-2601
https://security.gentoo.org/glsa/202311-14
https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0
https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0

CVE ID:	CVE-2022-2601
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.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2023.1317
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2022-2601 https://security.gentoo.org/glsa/202311-14 https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0 https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0