CVE-2022-2601

EUVD-2022-34848
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 19%
Affected Products (NVD)
VendorProductVersion
gnugrub2
𝑥
≤ 2.06
redhatenterprise_linux_eus
9.0
redhatenterprise_linux_for_power_little_endian_eus
9.0
redhatenterprise_linux_server_aus
8.2
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.1
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
8.2
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
9.0
redhatenterprise_linux_server_tus
8.2
redhatenterprise_linux_server_update_services_for_sap_solutions
8.1
redhatenterprise_linux_server_update_services_for_sap_solutions
8.2
redhatenterprise_linux_server_update_services_for_sap_solutions
9.0
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
(x64, x86)
KB5055547
1607 (x64, x86)
KB5055521
1809 (x64, x86)
KB5055519
21H2 (arm64, x64, x86)
KB5055518
22H2 (arm64, x64, x86)
KB5055518
Windows 11
21H2 (arm64, x64)
KB5041592
22H2 (arm64, x64)
KB5055528
23H2 (arm64, x64)
KB5055528
24H2 (arm64)
KB5055523
24H2 (x64)
KB5055528
Windows Server 2012
Server Core
KB5055581
Standard
KB5055581
Windows Server 2012 R2
Server Core
KB5055557
Standard
KB5055557
Windows Server 2016
Server Core
KB5055521
Standard
KB5055521
Windows Server 2019
Server Core
KB5055519
Standard
KB5055519
Windows Server 2022
23H2 Server Core
KB5055527
Server Core
KB5055526
Standard
KB5055526
Debian logo
Debian Releases
Debian Product
Codename
grub2
bookworm
2.06-13+deb12u1
fixed
bookworm (security)
2.06-13+deb12u1
fixed
bullseye
2.06-3~deb11u6
fixed
bullseye (security)
2.06-3~deb11u6
fixed
sid
2.12-5
fixed
trixie
2.12-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
grub2
bionic
not-affected
focal
not-affected
impish
ignored
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
not-affected
xenial
not-affected
grub2-signed
bionic
Fixed 1.187.3~18.04.1
released
focal
Fixed 1.187.3~20.04.1
released
jammy
Fixed 1.187.3~22.04.1
released
kinetic
ignored
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
needed
xenial
needed
grub2-unsigned
bionic
Fixed 2.06-2ubuntu14.1
released
focal
Fixed 2.06-2ubuntu14.1
released
jammy
Fixed 2.06-2ubuntu14.1
released
kinetic
ignored
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
needed
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0
https://security.gentoo.org/glsa/202311-14
https://security.netapp.com/advisory/ntap-20230203-0004/
https://arstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/
https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0
https://security.gentoo.org/glsa/202311-14
https://security.netapp.com/advisory/ntap-20230203-0004/