A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade grub2-efi-x64Upgrade grub2-pcUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-ec2Upgrade grub2-efi-x64-cdbootUpgrade grub2-efi-x64-ec2Upgrade grub2Upgrade grub2-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-extraUpgrade grub2-tools-efiUpgrade grub2-emuUpgrade grub2-emu-modules | Mar 5, 2024 | Nov 29, 2019 |
| Centos_linux | — | Upgrade grub2-tools-efiUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-extra-debuginfoUpgrade grub2-pc-modulesUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-ia32Upgrade grub2-efi-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-debugsourceUpgrade grub2-tools-minimalUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extraUpgrade grub2-efi-ia32-modulesUpgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-efi-ia32-cdbootUpgrade grub2-debuginfoUpgrade grub2-pcUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-debuginfo | Feb 5, 2020 | Nov 29, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-tools-minimalUpgrade grub2-tools-extraUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-common | Jan 3, 2020 | Nov 29, 2019 |
| Oracle_linux | — | Upgrade grub2-tools-extraUpgrade grub2-efi-aa64Upgrade grub2-efi-x64Upgrade grub2-efi-ia32Upgrade grub2-tools-minimalUpgrade grub2-tools-efiUpgrade grub2-pc-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-commonUpgrade grub2-toolsUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-ia32-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-modules | Oct 5, 2022 | Nov 25, 2019 |
| Redhat_linux | — | Upgrade grub2-efi-x64Upgrade grub2-efi-x64-modulesUpgrade grub2-debuginfoUpgrade grub2-pcUpgrade grub2-pc-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2-commonUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-ia32Upgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-efiUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-debuginfoUpgrade grub2-toolsUpgrade grub2-efi-ia32-cdbootUpgrade grub2-debugsourceUpgrade grub2-tools-extraUpgrade grub2-efi-ia32-modulesUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-minimal | Feb 5, 2020 | Nov 29, 2019 |
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