High severity7.1NVD Advisory· Published Dec 19, 2022· Updated Jun 17, 2026
CVE-2022-3775
CVE-2022-3775
Description
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
63- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- grub2/grub2's font codedescription
- osv-coords59 versionspkg:rpm/almalinux/grub2-commonpkg:rpm/almalinux/grub2-efi-aa64pkg:rpm/almalinux/grub2-efi-aa64-cdbootpkg:rpm/almalinux/grub2-efi-aa64-modulespkg:rpm/almalinux/grub2-efi-ia32pkg:rpm/almalinux/grub2-efi-ia32-cdbootpkg:rpm/almalinux/grub2-efi-ia32-modulespkg:rpm/almalinux/grub2-efi-x64pkg:rpm/almalinux/grub2-efi-x64-cdbootpkg:rpm/almalinux/grub2-efi-x64-modulespkg:rpm/almalinux/grub2-pcpkg:rpm/almalinux/grub2-pc-modulespkg:rpm/almalinux/grub2-ppc64lepkg:rpm/almalinux/grub2-ppc64le-modulespkg:rpm/almalinux/grub2-toolspkg:rpm/almalinux/grub2-tools-efipkg:rpm/almalinux/grub2-tools-extrapkg:rpm/almalinux/grub2-tools-minimalpkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%20Micro%205.2pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%20Micro%205.3pkg:rpm/opensuse/grub2&distro=openSUSE%20Tumbleweedpkg:rpm/suse/grub2&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/grub2&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%20Module%204.2pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Proxy%20Module%204.3pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/grub2&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%209pkg: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
2- access.redhat.com/security/cve/cve-2022-3775nvdThird Party Advisory
- security.gentoo.org/glsa/202311-14nvd
News mentions
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