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.
AI analysis not yet available
Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.
No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| gnu | grub2 | 2.06 | - |
| fedoraproject | fedora | - | - |
| redhat | enterprise_linux_eus | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
12
Affected Products
7
References
gnu / grub2
| - |
| redhat | enterprise_linux_for_power_little_endian_eus | - | - |
| redhat | enterprise_linux_server_aus | - | - |
| redhat | enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions | - | - |
| redhat | enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions | - | - |
| redhat | enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions | - | - |
| redhat | enterprise_linux_server_tus | - | - |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | - | - |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | - | - |
| redhat | enterprise_linux_server_update_services_for_sap_solutions | - | - |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Exploitability
Impact