CVE-2022-2601

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.

CVSS v3.0 8.6 HIGH

8.6^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0	Issue Tracking Third Party Advisory
https://security.netapp.com/advisory/ntap-20230203-0004/

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:9.0:::::::*

Information

Published : 2022-12-14 13:15

Updated : 2023-02-03 02:15

NVD link : CVE-2022-2601

Mitre link : CVE-2022-2601

JSON object : View

CWE

CWE-787

Out-of-bounds Write

CWE-122

Heap-based Buffer Overflow

Products Affected

redhat

enterprise_linux_server_aus
enterprise_linux_server_tus
enterprise_linux_for_power_little_endian_eus
enterprise_linux_server_update_services_for_sap_solutions
enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
enterprise_linux_eus

fedoraproject

fedora

gnu

grub2

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8.6 /10