Integer underflow in grubnetrecvip4packets; A malicious crafted IP packet can lead to an integer underflow in grubnetrecvip4packets() function on rsm->totallen value. Under certain circumstances the totallen value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-signed" }, { "binary_version": "1.187.3~18.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-signed" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-dbg" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-dbg" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-signed" }, { "binary_version": "1.187.3~20.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-signed" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-dbg" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-dbg" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-signed" }, { "binary_version": "1.187.3~22.04.1+2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-signed" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-amd64-dbg" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-bin" }, { "binary_version": "2.06-2ubuntu14.1", "binary_name": "grub-efi-arm64-dbg" } ] }