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 grub2-tools-debuginfoUpgrade shim-x64Upgrade grub2-debuginfoUpgrade grub2-efi-aa64-modulesUpgrade grub2-ppc-modulesUpgrade grub2-tools-extraUpgrade mokutilUpgrade mokutil-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-extra-debuginfoUpgrade fwupdUpgrade grub2-commonUpgrade shim-unsigned-ia32Upgrade fwupdate-develUpgrade grub2-efi-x64-modulesUpgrade grub2-pc-modulesUpgrade grub2-tools-efi-debuginfoUpgrade fwupd-debugsourceUpgrade fwupdate-libsUpgrade shim-ia32Upgrade fwupdate-efiUpgrade grub2-pcUpgrade grub2-ppc64-modulesUpgrade fwupdate-debuginfoUpgrade fwupdateUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-ia32Upgrade grub2-debugsourceUpgrade grub2-efi-x64Upgrade grub2-tools-efiUpgrade grub2-efi-x64-cdbootUpgrade fwupd-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade shim-unsigned-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2Upgrade grub2-efi-ia32-modules | 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-commonUpgrade grub2-toolsUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-modules | Aug 31, 2020 | Jul 30, 2020 |
| Oracle_linux | — | Upgrade grub2-commonUpgrade grub2-efi-ia32-modulesUpgrade grub2-toolsUpgrade grub2-efi-x64Upgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade grub2Upgrade grub2-pcUpgrade grub2-efi-ia32Upgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modules | Jul 30, 2020 | Jul 29, 2020 |
| Redhat_linux | — | Upgrade fwupdateUpgrade shim-unsigned-ia32-debuginfoUpgrade grub2-efi-x64Upgrade grub2-debuginfoUpgrade shim-unsigned-aa64-debuginfoUpgrade mokutil-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade shim-unsigned-x64Upgrade shim-unsigned-ia32Upgrade fwupdate-develUpgrade grub2-tools-extra-debuginfoUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-modulesUpgrade grub2Upgrade fwupdate-libsUpgrade grub2-tools-minimal-debuginfoUpgrade fwupd-debugsourceUpgrade fwupdate-debuginfoUpgrade grub2-efi-ia32Upgrade grub2-pcUpgrade grub2-ppc64le-modulesUpgrade grub2-pc-modulesUpgrade grub2-tools-debuginfoUpgrade grub2-ppc64-modulesUpgrade grub2-commonUpgrade shim-x64Upgrade mokutilUpgrade shim-unsigned-x64-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-extraUpgrade grub2-tools-efi-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-debugsourceUpgrade grub2-efi-aa64-modulesUpgrade fwupdate-efiUpgrade grub2-toolsUpgrade shim-ia32Upgrade grub2-tools-minimalUpgrade fwupdUpgrade fwupd-debuginfoUpgrade grub2-tools-efi | Jul 30, 2020 | Jul 29, 2020 |
| Suse | — | Upgrade grub2Upgrade grub2-i386-efiUpgrade grub2-i386-efi-debugUpgrade grub2-branding-upstreamUpgrade grub2-x86_64-efiUpgrade grub2-snapper-pluginUpgrade grub2-i386-xenUpgrade grub2-x86_64-efi-debugUpgrade grub2-systemd-sleep-pluginUpgrade grub2-s390x-emuUpgrade grub2-i386-pcUpgrade grub2-x86_64-xenUpgrade grub2-arm64-efiUpgrade grub2-i386-pc-debugUpgrade grub2-powerpc-ieee1275 | Jul 30, 2020 | Jul 29, 2020 |
| Ubuntu | — | Upgrade grub-efi-amd64-binUpgrade grub-efi-arm64-binUpgrade grub-efi-ia32-binUpgrade grub-efi-arm-binUpgrade grub-efi-amd64-signedUpgrade grub-efi-arm64-signed | 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 |
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