There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
CVSS Details
- CVSS 3.1 Base Score: 5.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade grub | Aug 22, 2024 | Jul 31, 2020 |
| Centos_linux | — | Upgrade grub2-commonUpgrade grub2-debugsourceUpgrade shim-ia32Upgrade grub2-toolsUpgrade grub2-tools-debuginfoUpgrade grub2-tools-efiUpgrade grub2-ppc-modulesUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-ppc64-modulesUpgrade shim-x64Upgrade grub2-tools-extraUpgrade fwupdUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-efi-debuginfoUpgrade fwupdate-efiUpgrade grub2-tools-minimalUpgrade mokutilUpgrade grub2-tools-extra-debuginfoUpgrade fwupdate-develUpgrade fwupdate-libsUpgrade shim-unsigned-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-efi-ia32Upgrade grub2Upgrade fwupdateUpgrade grub2-efi-x64-modulesUpgrade fwupd-debugsourceUpgrade shim-unsigned-ia32Upgrade mokutil-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-pcUpgrade grub2-efi-ia32-modulesUpgrade grub2-debuginfoUpgrade grub2-pc-modulesUpgrade grub2-ppc64le-modulesUpgrade fwupdate-debuginfoUpgrade grub2-efi-x64 | Jul 30, 2020 | Jul 29, 2020 |
| Debian | — | Upgrade grub2 | Jul 31, 2020 | Jul 31, 2020 |
| Gentoo Linux | — | Upgrade sys-devel/grub. | May 3, 2021 | Jul 31, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-commonUpgrade grub2-efi-aa64 | Aug 31, 2020 | Jul 31, 2020 |
| Oracle_linux | — | Upgrade grub2-efi-ia32Upgrade grub2-tools-extraUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-modulesUpgrade grub2-pc-modulesUpgrade grub2-tools-efiUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade grub2-toolsUpgrade grub2-efi-ia32-cdbootUpgrade grub2-pcUpgrade grub2-commonUpgrade grub2-efi-ia32-modulesUpgrade grub2 | Jul 30, 2020 | Jul 29, 2020 |
| Redhat_linux | — | Upgrade fwupdUpgrade grub2-tools-extra-debuginfoUpgrade grub2-pc-modulesUpgrade fwupdate-libsUpgrade shim-unsigned-x64-debuginfoUpgrade fwupd-debugsourceUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-efiUpgrade grub2-commonUpgrade shim-x64Upgrade grub2-tools-extraUpgrade fwupdate-debuginfoUpgrade shim-unsigned-aa64-debuginfoUpgrade shim-unsigned-ia32-debuginfoUpgrade shim-unsigned-x64Upgrade grub2Upgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade shim-ia32Upgrade fwupdate-efiUpgrade mokutil-debuginfoUpgrade mokutilUpgrade grub2-ppc64-modulesUpgrade grub2-debuginfoUpgrade grub2-ppc-modulesUpgrade fwupdateUpgrade grub2-efi-ia32-modulesUpgrade grub2-pcUpgrade grub2-tools-minimal-debuginfoUpgrade fwupdate-develUpgrade grub2-debugsourceUpgrade shim-unsigned-ia32Upgrade grub2-tools-minimalUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32Upgrade grub2-toolsUpgrade grub2-tools-debuginfo | Jul 30, 2020 | Jul 29, 2020 |
| Suse | — | Upgrade grub2-powerpc-ieee1275Upgrade grub2-x86_64-efiUpgrade grub2-i386-efiUpgrade grub2-systemd-sleep-pluginUpgrade grub2-i386-pc-debugUpgrade grub2Upgrade grub2-s390x-emuUpgrade grub2-i386-xenUpgrade grub2-i386-pcUpgrade grub2-x86_64-xenUpgrade grub2-i386-efi-debugUpgrade grub2-branding-upstreamUpgrade grub2-snapper-pluginUpgrade grub2-arm64-efiUpgrade grub2-x86_64-efi-debug | Jul 31, 2020 | Jul 29, 2020 |
| Ubuntu | — | Upgrade grub-efi-ia32-binUpgrade grub-efi-amd64-signedUpgrade grub-efi-arm64-binUpgrade grub-efi-arm64-signedUpgrade grub-efi-amd64-binUpgrade grub-efi-arm-bin | Aug 5, 2020 | Jul 29, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 31, 2020 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub