It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds write. A local attacker could potentially use this to perform arbitrary code execution bypass and bypass secure boot protections. (CVE-2023-4692)
It was discovered that a specially crafted file system image could cause an out-of-bounds read. A physically-present attacker could possibly use this to leak sensitive information to the GRUB pager. (CVE-2023-4693)
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-amd64" }, { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-amd64-bin" }, { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-amd64-dbg" }, { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-arm64" }, { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-arm64-bin" }, { "binary_version": "2.06-2ubuntu14.4", "binary_name": "grub-efi-arm64-dbg" } ] }