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 fwupdate-develUpgrade grub2-debuginfoUpgrade grub2-tools-debuginfoUpgrade grub2-commonUpgrade mokutil-debuginfoUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-aa64-modulesUpgrade fwupd-debugsourceUpgrade mokutilUpgrade shim-unsigned-ia32Upgrade shim-x64Upgrade grub2-tools-extra-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-pc-modulesUpgrade fwupdate-libsUpgrade fwupdUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-extraUpgrade fwupdateUpgrade fwupdate-debuginfoUpgrade grub2-ppc64le-modulesUpgrade fwupdate-efiUpgrade fwupd-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-efi-ia32Upgrade grub2-efi-x64Upgrade grub2-ppc64-modulesUpgrade grub2-debugsourceUpgrade grub2Upgrade shim-ia32Upgrade grub2-efi-ia32-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-cdbootUpgrade shim-unsigned-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-tools-efi | 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-efi-aa64-modulesUpgrade grub2-efi-aa64Upgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-tools | Aug 31, 2020 | Jul 30, 2020 |
| Oracle_linux | — | Upgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-x64Upgrade grub2-toolsUpgrade grub2-efi-ia32-modulesUpgrade grub2Upgrade grub2-pcUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-tools-efiUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-cdbootUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32 | Jul 30, 2020 | Jul 29, 2020 |
| Redhat_linux | — | Upgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-ppc64-modulesUpgrade fwupdate-efiUpgrade grub2-tools-efi-debuginfoUpgrade grub2-debugsourceUpgrade grub2-tools-efiUpgrade shim-x64Upgrade shim-unsigned-x64-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade shim-ia32Upgrade grub2-toolsUpgrade mokutilUpgrade fwupdUpgrade grub2-tools-debuginfoUpgrade fwupd-debuginfoUpgrade grub2-tools-extra-debuginfoUpgrade grub2Upgrade grub2-efi-ia32-modulesUpgrade fwupdate-libsUpgrade shim-unsigned-ia32Upgrade shim-unsigned-aa64-debuginfoUpgrade fwupdateUpgrade shim-unsigned-x64Upgrade grub2-efi-ia32Upgrade grub2-debuginfoUpgrade grub2-efi-x64Upgrade shim-unsigned-ia32-debuginfoUpgrade fwupdate-debuginfoUpgrade grub2-pcUpgrade fwupdate-develUpgrade fwupd-debugsourceUpgrade mokutil-debuginfoUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-ppc64le-modulesUpgrade grub2-pc-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-x64-cdboot | Jul 30, 2020 | Jul 29, 2020 |
| Suse | — | Upgrade grub2-i386-pcUpgrade grub2-i386-efiUpgrade grub2-i386-efi-debugUpgrade grub2-branding-upstreamUpgrade grub2-s390x-emuUpgrade grub2-systemd-sleep-pluginUpgrade grub2-snapper-pluginUpgrade grub2-x86_64-efi-debugUpgrade grub2-x86_64-efiUpgrade grub2-i386-xenUpgrade grub2Upgrade grub2-x86_64-xenUpgrade grub2-arm64-efiUpgrade grub2-powerpc-ieee1275Upgrade grub2-i386-pc-debug | Jul 30, 2020 | Jul 29, 2020 |
| Ubuntu | — | Upgrade grub-efi-arm-binUpgrade grub-efi-amd64-signedUpgrade grub-efi-arm64-signedUpgrade grub-efi-ia32-binUpgrade grub-efi-arm64-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 |
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