A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
CVSS Details
- CVSS 3.1 Base Score: 6.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-grub2-commonalma-upgrade-grub2-efi-aa64alma-upgrade-grub2-efi-aa64-cdbootalma-upgrade-grub2-efi-aa64-modulesalma-upgrade-grub2-efi-x64alma-upgrade-grub2-efi-x64-cdbootalma-upgrade-grub2-efi-x64-modulesalma-upgrade-grub2-pcalma-upgrade-grub2-pc-modulesalma-upgrade-grub2-ppc64lealma-upgrade-grub2-ppc64le-modulesalma-upgrade-grub2-toolsalma-upgrade-grub2-tools-efialma-upgrade-grub2-tools-extraalma-upgrade-grub2-tools-minimal | Jul 4, 2025 | Feb 18, 2025 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-grub2-commonamazon-linux-2023-upgrade-grub2-debuginfoamazon-linux-2023-upgrade-grub2-debugsourceamazon-linux-2023-upgrade-grub2-efi-aa64amazon-linux-2023-upgrade-grub2-efi-aa64-cdbootamazon-linux-2023-upgrade-grub2-efi-aa64-ec2amazon-linux-2023-upgrade-grub2-efi-aa64-modulesamazon-linux-2023-upgrade-grub2-efi-x64amazon-linux-2023-upgrade-grub2-efi-x64-cdbootamazon-linux-2023-upgrade-grub2-efi-x64-ec2amazon-linux-2023-upgrade-grub2-efi-x64-modulesamazon-linux-2023-upgrade-grub2-emuamazon-linux-2023-upgrade-grub2-emu-debuginfoamazon-linux-2023-upgrade-grub2-emu-modulesamazon-linux-2023-upgrade-grub2-pcamazon-linux-2023-upgrade-grub2-pc-modulesamazon-linux-2023-upgrade-grub2-toolsamazon-linux-2023-upgrade-grub2-tools-debuginfoamazon-linux-2023-upgrade-grub2-tools-efiamazon-linux-2023-upgrade-grub2-tools-efi-debuginfoamazon-linux-2023-upgrade-grub2-tools-extraamazon-linux-2023-upgrade-grub2-tools-extra-debuginfoamazon-linux-2023-upgrade-grub2-tools-minimalamazon-linux-2023-upgrade-grub2-tools-minimal-debuginfo | Apr 15, 2025 | Feb 18, 2025 | |
| Debian | debian-upgrade-grub2no-fix-debian-deb-package | May 15, 2025 | Feb 18, 2025 | |
| Dell Powerstore Dsa2025342 | dell-powerstoreos-upgrade-latest | Oct 23, 2025 | Sep 2, 2025 | |
| Dell Powerstore Dsa2026039 | dell-powerstoreos-upgrade-latest | Jan 13, 2026 | Jan 6, 2026 | |
| Huawei Euleros 2_0_sp12 | huawei-euleros-2_0_sp12-upgrade-grub2-commonhuawei-euleros-2_0_sp12-upgrade-grub2-efi-aa64huawei-euleros-2_0_sp12-upgrade-grub2-efi-aa64-moduleshuawei-euleros-2_0_sp12-upgrade-grub2-toolshuawei-euleros-2_0_sp12-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp12-upgrade-grub2-tools-minimal | Jun 11, 2025 | Feb 18, 2025 | |
| Huawei Euleros 2_0_sp13 | huawei-euleros-2_0_sp13-upgrade-grub2-commonhuawei-euleros-2_0_sp13-upgrade-grub2-efi-x64huawei-euleros-2_0_sp13-upgrade-grub2-efi-x64-moduleshuawei-euleros-2_0_sp13-upgrade-grub2-pchuawei-euleros-2_0_sp13-upgrade-grub2-pc-moduleshuawei-euleros-2_0_sp13-upgrade-grub2-toolshuawei-euleros-2_0_sp13-upgrade-grub2-tools-efihuawei-euleros-2_0_sp13-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp13-upgrade-grub2-tools-minimal | Jul 1, 2025 | Feb 18, 2025 | |
| Oracle_linux | — | oracle-linux-upgrade-grub2-commonoracle-linux-upgrade-grub2-efi-aa64oracle-linux-upgrade-grub2-efi-aa64-cdbootoracle-linux-upgrade-grub2-efi-aa64-modulesoracle-linux-upgrade-grub2-efi-x64oracle-linux-upgrade-grub2-efi-x64-cdbootoracle-linux-upgrade-grub2-efi-x64-modulesoracle-linux-upgrade-grub2-pcoracle-linux-upgrade-grub2-pc-modulesoracle-linux-upgrade-grub2-toolsoracle-linux-upgrade-grub2-tools-efioracle-linux-upgrade-grub2-tools-extraoracle-linux-upgrade-grub2-tools-minimal | May 26, 2025 | Feb 18, 2025 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-grub2-commonredhat-upgrade-grub2-debuginforedhat-upgrade-grub2-debugsourceredhat-upgrade-grub2-efi-aa64-modulesredhat-upgrade-grub2-efi-x64redhat-upgrade-grub2-efi-x64-cdbootredhat-upgrade-grub2-efi-x64-modulesredhat-upgrade-grub2-emu-debuginforedhat-upgrade-grub2-pcredhat-upgrade-grub2-pc-modulesredhat-upgrade-grub2-ppc64le-modulesredhat-upgrade-grub2-toolsredhat-upgrade-grub2-tools-debuginforedhat-upgrade-grub2-tools-efiredhat-upgrade-grub2-tools-efi-debuginforedhat-upgrade-grub2-tools-extraredhat-upgrade-grub2-tools-extra-debuginforedhat-upgrade-grub2-tools-minimalredhat-upgrade-grub2-tools-minimal-debuginfo | May 15, 2025 | Feb 18, 2025 | |
| Rocky_linux | rocky-upgrade-grub2-debuginforocky-upgrade-grub2-debugsourcerocky-upgrade-grub2-efi-x64rocky-upgrade-grub2-efi-x64-cdbootrocky-upgrade-grub2-pcrocky-upgrade-grub2-toolsrocky-upgrade-grub2-tools-debuginforocky-upgrade-grub2-tools-efirocky-upgrade-grub2-tools-efi-debuginforocky-upgrade-grub2-tools-extrarocky-upgrade-grub2-tools-extra-debuginforocky-upgrade-grub2-tools-minimalrocky-upgrade-grub2-tools-minimal-debuginfo | Oct 6, 2025 | Oct 4, 2025 | |
| Suse | — | suse-upgrade-grub2suse-upgrade-grub2-arm64-efisuse-upgrade-grub2-arm64-efi-debugsuse-upgrade-grub2-arm64-efi-extrassuse-upgrade-grub2-branding-upstreamsuse-upgrade-grub2-commonsuse-upgrade-grub2-i386-pcsuse-upgrade-grub2-i386-pc-debugsuse-upgrade-grub2-i386-pc-extrassuse-upgrade-grub2-i386-xen-debugsuse-upgrade-grub2-powerpc-ieee1275suse-upgrade-grub2-powerpc-ieee1275-debugsuse-upgrade-grub2-powerpc-ieee1275-extrassuse-upgrade-grub2-s390x-emususe-upgrade-grub2-s390x-emu-debugsuse-upgrade-grub2-s390x-emu-extrassuse-upgrade-grub2-snapper-pluginsuse-upgrade-grub2-systemd-sleep-pluginsuse-upgrade-grub2-x86_64-efisuse-upgrade-grub2-x86_64-efi-debugsuse-upgrade-grub2-x86_64-efi-extrassuse-upgrade-grub2-x86_64-xensuse-upgrade-grub2-x86_64-xen-debugsuse-upgrade-grub2-x86_64-xen-extras | Dec 5, 2025 | Apr 10, 2025 |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jul 2, 2025 | Feb 18, 2025 |
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