Name: CVE-2020-14309: Integer Overflow or Wraparound
Creator: Rapid7
Published: 2020-07-30T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-14309, CWE-190, CWE-787, CVSS 6.7, EPSS 0.00047

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