CVE-2023-4693
grub-efi-amd64-signed: An out-of-bounds read flaw was found on grub2's NTFS filesystem driver.This issue may allow a physically present atta...
CVE-2023-4693 is fixed in 36 products on 1 platform, first by grub-efi-amd64 2.06-2ubuntu14.4, released October 2, 2023. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver.This issue may allow a physically present attacker to present a speciallycrafted NTFS file system image to read arbitrary memory locations. Asuccessful attack allows sensitive data cached in memory or EFI variablevalues to be leaked, presenting a high Confidentiality risk.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| grub-efi-amd64 · Ubuntu 20.04 LTS (focal) | 2.06-2ubuntu14.4 | grub-efi-amd64 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64 · Ubuntu 22.04.1 LTS (jammy) | 2.06-2ubuntu14.4 | grub-efi-amd64 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64-bin · Ubuntu 20.04 LTS (focal) | 2.06-2ubuntu14.4 | grub-efi-amd64-bin 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64-bin · Ubuntu 22.04.1 LTS (jammy) | 2.06-2ubuntu14.4 | grub-efi-amd64-bin 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64-signed · Ubuntu 20.04 LTS (focal) | 1.187.6~20.04.1+2.06-2ubuntu14.4 | grub-efi-amd64-signed 1.187.6~20.04.1+2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64-signed · Ubuntu 22.04.1 LTS (jammy) | 1.187.6+2.06-2ubuntu14.4 | grub-efi-amd64-signed 1.187.6+2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-amd64-signed · Ubuntu 24.04.5 LTS (noble) | 1.199+2.12~rc1-12ubuntu2 | grub-efi-amd64-signed 1.199+2.12~rc1-12ubuntu2 | Oct 2, 2023 |
| grub-efi-amd64-signed · Ubuntu 24.10 (oracular) | 1.199 | grub-efi-amd64-signed 1.199 | Oct 3, 2023 |
| grub-efi-amd64-signed · Ubuntu 25.04 (plucky) | 1.199 | grub-efi-amd64-signed 1.199 | Oct 3, 2023 |
| grub-efi-arm64 · Ubuntu 20.04 LTS (focal) | 2.06-2ubuntu14.4 | grub-efi-arm64 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64 · Ubuntu 22.04.1 LTS (jammy) | 2.06-2ubuntu14.4 | grub-efi-arm64 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64-bin · Ubuntu 20.04 LTS (focal) | 2.06-2ubuntu14.4 | grub-efi-arm64-bin 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64-bin · Ubuntu 22.04.1 LTS (jammy) | 2.06-2ubuntu14.4 | grub-efi-arm64-bin 2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64-signed · Ubuntu 20.04 LTS (focal) | 1.187.6~20.04.1+2.06-2ubuntu14.4 | grub-efi-arm64-signed 1.187.6~20.04.1+2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64-signed · Ubuntu 22.04.1 LTS (jammy) | 1.187.6+2.06-2ubuntu14.4 | grub-efi-arm64-signed 1.187.6+2.06-2ubuntu14.4 | Oct 2, 2023 |
| grub-efi-arm64-signed · Ubuntu 24.04.5 LTS (noble) | 1.199+2.12~rc1-12ubuntu2 | grub-efi-arm64-signed 1.199+2.12~rc1-12ubuntu2 | Oct 2, 2023 |
| grub-efi-arm64-signed · Ubuntu 24.10 (oracular) | 1.199 | grub-efi-arm64-signed 1.199 | Oct 3, 2023 |
| grub-efi-arm64-signed · Ubuntu 25.04 (plucky) | 1.199 | grub-efi-arm64-signed 1.199 | Oct 3, 2023 |
| grub2 · Debian 12.15 (bookworm) | 2.06-13+deb12u1 | DEBIAN-CVE-2023-4693 | Oct 25, 2023 |
| grub2 · Debian 13.5 (trixie) | 2.12~rc1-11 | DEBIAN-CVE-2023-4693 | Oct 25, 2023 |
| grub2 · Debian 14 | 2.12~rc1-11 | DEBIAN-CVE-2023-4693 | Oct 25, 2023 |
| grub2 · rocky 8 | 1:2.02-156.el8.rocky.0.1 | RLSA-2024:3184 | Jun 14, 2024 |
| grub2-common · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-common · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-common · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-common · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-common · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-common · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-common · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-debugsource · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-aa64 · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64 · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64 · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64 · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64 · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-aa64 · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-aa64 · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-efi-aa64-cdboot · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64-cdboot · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64-cdboot · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64-cdboot · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64-cdboot · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-aa64-cdboot · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-aa64-cdboot · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-efi-aa64-ec2 · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-aa64-modules · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64-modules · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64-modules · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-aa64-modules · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-aa64-modules · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-aa64-modules · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-aa64-modules · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-efi-ia32 · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32 · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32 · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-ia32-cdboot · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32-cdboot · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32-cdboot · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-ia32-modules · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32-modules · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-ia32-modules · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-x64 · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64 · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64 · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64 · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64 · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-x64 · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-x64 · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-efi-x64-cdboot · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64-cdboot · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64-cdboot · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64-cdboot · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64-cdboot · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-x64-cdboot · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-x64-cdboot · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-efi-x64-ec2 · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-x64-modules · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64-modules · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64-modules · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-efi-x64-modules · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-efi-x64-modules · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-efi-x64-modules · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-efi-x64-modules · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-emu · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-emu-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-emu-modules · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-pc · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-pc · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-pc · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-pc · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-pc · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-pc · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-pc · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-pc-modules · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-pc-modules · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-pc-modules · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-pc-modules · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-pc-modules · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-pc-modules · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-pc-modules · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-ppc64le · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-ppc64le · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-ppc64le · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-ppc64le · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-ppc64le-modules · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-ppc64le-modules · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-ppc64le-modules · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-ppc64le-modules · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-tools · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-tools · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-tools · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-tools · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-tools · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-tools · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-tools-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-efi · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-tools-efi · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-efi · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-tools-efi · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-efi · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-efi · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-tools-efi · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-tools-efi-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-extra · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-tools-extra · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-extra · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-tools-extra · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-extra · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-extra · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-tools-extra · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-tools-extra-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-minimal · RHEL 8 | 1:2.02-156.el8 | RHSA-2024:3184 | May 22, 2024 |
| grub2-tools-minimal · RHEL 9 | 1:2.06-77.el9 | RHSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-minimal · almalinux 8 | 1:2.02-156.el8.alma.1 | ALSA-2024:3184 | May 22, 2024 |
| grub2-tools-minimal · almalinux 9 | 1:2.06-77.el9.alma.1 | ALSA-2024:2456 | Apr 30, 2024 |
| grub2-tools-minimal · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
| grub2-tools-minimal · ol 8 | 1:2.02-156.0.1.el8 | ELSA-2024-3184 | May 24, 2024 |
| grub2-tools-minimal · ol 9 | 1:2.06-77.0.1.el9 | ELSA-2024-2456 | May 3, 2024 |
| grub2-tools-minimal-debuginfo · amzn 2023 | 1:2.06-61.amzn2023.0.8 | ALAS2023-2023-409 | Oct 30, 2023 |
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