There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
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 |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade grub | Aug 22, 2024 | Jul 30, 2020 |
| Centos_linux | — | Upgrade mokutilUpgrade mokutil-debuginfoUpgrade shim-unsigned-ia32Upgrade grub2-tools-efi-debuginfoUpgrade fwupdUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-extraUpgrade grub2-commonUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-debuginfoUpgrade grub2-pc-modulesUpgrade shim-x64Upgrade grub2-efi-x64-modulesUpgrade fwupdate-libsUpgrade grub2-debuginfoUpgrade fwupdate-develUpgrade grub2-ppc-modulesUpgrade fwupd-debugsourceUpgrade grub2Upgrade fwupd-debuginfoUpgrade grub2-toolsUpgrade shim-unsigned-x64Upgrade grub2-tools-efiUpgrade grub2-efi-x64Upgrade grub2-efi-ia32-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-cdbootUpgrade grub2-ppc64-modulesUpgrade grub2-efi-ia32Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-debugsourceUpgrade grub2-tools-minimalUpgrade fwupdate-debuginfoUpgrade grub2-ppc64le-modulesUpgrade shim-ia32Upgrade fwupdate-efiUpgrade fwupdate | 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 30, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-tools-minimalUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-efi-aa64-cdbootUpgrade grub2-toolsUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64 | Aug 31, 2020 | Jul 30, 2020 |
| Oracle_linux | — | Upgrade grub2-pcUpgrade grub2Upgrade grub2-efi-ia32-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-commonUpgrade grub2-efi-x64Upgrade grub2-toolsUpgrade grub2-pc-modulesUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-tools-efiUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extraUpgrade grub2-efi-ia32 | Jul 30, 2020 | Jul 29, 2020 |
| Redhat_linux | — | Upgrade grub2-ppc64le-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-x64Upgrade grub2-efi-ia32Upgrade shim-unsigned-ia32Upgrade fwupd-debugsourceUpgrade mokutil-debuginfoUpgrade grub2Upgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-minimal-debuginfoUpgrade shim-unsigned-x64Upgrade fwupdateUpgrade grub2-efi-ia32-modulesUpgrade shim-unsigned-aa64-debuginfoUpgrade fwupdate-libsUpgrade fwupdate-develUpgrade grub2-debuginfoUpgrade grub2-pc-modulesUpgrade shim-unsigned-ia32-debuginfoUpgrade fwupdate-debuginfoUpgrade grub2-pcUpgrade shim-unsigned-x64-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-debugsourceUpgrade grub2-tools-efi-debuginfoUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade shim-ia32Upgrade grub2-tools-extraUpgrade fwupdate-efiUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade fwupdUpgrade mokutilUpgrade grub2-commonUpgrade grub2-tools-debuginfoUpgrade grub2-ppc64-modulesUpgrade fwupd-debuginfoUpgrade shim-x64Upgrade grub2-tools-efi | Jul 30, 2020 | Jul 29, 2020 |
| Suse | — | Upgrade grub2-x86_64-xenUpgrade grub2-arm64-efiUpgrade grub2-i386-pc-debugUpgrade grub2-powerpc-ieee1275Upgrade grub2-branding-upstreamUpgrade grub2-i386-efi-debugUpgrade grub2-i386-xenUpgrade grub2-snapper-pluginUpgrade grub2-x86_64-efi-debugUpgrade grub2-i386-pcUpgrade grub2Upgrade grub2-s390x-emuUpgrade grub2-systemd-sleep-pluginUpgrade grub2-x86_64-efiUpgrade grub2-i386-efi | Jul 30, 2020 | Jul 29, 2020 |
| Ubuntu | — | Upgrade grub-efi-arm-binUpgrade grub-efi-arm64-signedUpgrade grub-efi-amd64-signedUpgrade grub-efi-arm64-binUpgrade grub-efi-ia32-binUpgrade grub-efi-amd64-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 30, 2020 |
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