High severity8.6NVD Advisory· Published Dec 14, 2022· Updated Jun 17, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Grub/Grubllm-fuzzy
osv-coords59 versions
pkg:rpm/almalinux/grub2-common pkg:rpm/almalinux/grub2-efi-aa64 pkg:rpm/almalinux/grub2-efi-aa64-cdboot pkg:rpm/almalinux/grub2-efi-aa64-modules pkg:rpm/almalinux/grub2-efi-ia32 pkg:rpm/almalinux/grub2-efi-ia32-cdboot pkg:rpm/almalinux/grub2-efi-ia32-modules pkg:rpm/almalinux/grub2-efi-x64 pkg:rpm/almalinux/grub2-efi-x64-cdboot pkg:rpm/almalinux/grub2-efi-x64-modules pkg:rpm/almalinux/grub2-pc pkg:rpm/almalinux/grub2-pc-modules pkg:rpm/almalinux/grub2-ppc64le pkg:rpm/almalinux/grub2-ppc64le-modules pkg:rpm/almalinux/grub2-tools pkg:rpm/almalinux/grub2-tools-efi pkg:rpm/almalinux/grub2-tools-extra pkg:rpm/almalinux/grub2-tools-minimal pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%20Micro%205.2 pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%20Micro%205.3 pkg:rpm/opensuse/grub2&distro=openSUSE%20Tumbleweed pkg:rpm/suse/grub2&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/grub2&distro=SUSE%20Enterprise%20Storage%207 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCL pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%204.1 pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%20Module%204.2 pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%20Module%204.3 pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1 pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Server%204.1 pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%209 pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1:2.02-142.el8_7.1.alma+ 58 more
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 1:2.02-142.el8_7.1.alma
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.06-31.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.02-150000.122.17.1
- (no CPE)range: < 2.02-150000.122.17.1
- (no CPE)range: < 2.04-150300.3.8.1
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.02-115.72.1
- (no CPE)range: < 2.02-142.1
- (no CPE)range: < 2.02-153.1
- (no CPE)range: < 2.02-153.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.02-150000.122.17.1
- (no CPE)range: < 2.02-153.1
- (no CPE)range: < 2.02-153.1
- (no CPE)range: < 2.02-150000.122.17.1
- (no CPE)range: < 2.02-150100.123.17.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.04-150300.22.25.1
- (no CPE)range: < 2.06-150400.11.17.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.04-150200.9.68.1
- (no CPE)range: < 2.02-153.1
- (no CPE)range: < 2.02-153.1

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
arstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/nvd
security.gentoo.org/glsa/202311-14nvd
security.netapp.com/advisory/ntap-20230203-0004/nvd

News mentions

No linked articles in our index yet.

cvss	0.559
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000