Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0~20160408.ffea0a2c-2ubuntu0.2+esm3", "binary_name": "ovmf" }, { "binary_version": "0~20160408.ffea0a2c-2ubuntu0.2+esm3", "binary_name": "qemu-efi" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0~20180205.c0d9813c-2ubuntu0.3+esm2", "binary_name": "ovmf" }, { "binary_version": "0~20180205.c0d9813c-2ubuntu0.3+esm2", "binary_name": "qemu-efi" }, { "binary_version": "0~20180205.c0d9813c-2ubuntu0.3+esm2", "binary_name": "qemu-efi-aarch64" }, { "binary_version": "0~20180205.c0d9813c-2ubuntu0.3+esm2", "binary_name": "qemu-efi-arm" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0~20191122.bd85bf54-2ubuntu3.6", "binary_name": "ovmf" }, { "binary_version": "0~20191122.bd85bf54-2ubuntu3.6", "binary_name": "qemu-efi" }, { "binary_version": "0~20191122.bd85bf54-2ubuntu3.6", "binary_name": "qemu-efi-aarch64" }, { "binary_version": "0~20191122.bd85bf54-2ubuntu3.6", "binary_name": "qemu-efi-arm" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2022.02-3ubuntu0.22.04.3", "binary_name": "ovmf" }, { "binary_version": "2022.02-3ubuntu0.22.04.3", "binary_name": "ovmf-ia32" }, { "binary_version": "2022.02-3ubuntu0.22.04.3", "binary_name": "qemu-efi" }, { "binary_version": "2022.02-3ubuntu0.22.04.3", "binary_name": "qemu-efi-aarch64" }, { "binary_version": "2022.02-3ubuntu0.22.04.3", "binary_name": "qemu-efi-arm" } ] }