Описание
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| shim | fixed | 15.6-1 | package | |
| shim | fixed | 15.6-1~deb11u1 | bullseye | package |
| shim | no-dsa | buster | package |
Примечания
https://www.openwall.com/lists/oss-security/2022/06/07/5
https://github.com/rhboot/shim/commit/e99bdbb827a50cde019393d3ca1e89397db221a7 (15.6)
https://github.com/rhboot/shim/commit/159151b6649008793d6204a34d7b9c41221fb4b0 (15.6)
Связанные уязвимости
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
