Описание
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| linux | fixed | 4.8.11-1 | package | |
| linux | fixed | 3.16.39-1 | jessie | package |
| linux | not-affected | wheezy | package |
Примечания
http://seclists.org/fulldisclosure/2016/Nov/76
Proposed fix: https://lkml.org/lkml/2016/11/23/477
Fixed by: https://git.kernel.org/linus/f5527fffff3f002b0a6b376163613b82f69de073
Introduced by https://git.kernel.org/linus/cdec9cb5167ab1113ba9c58e395f664d9d3f9acb (v3.3-rc1)
https://bugzilla.redhat.com/show_bug.cgi?id=1343162 (not yet opened)
EPSS
Связанные уязвимости
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
ELSA-2016-3651: Unbreakable Enterprise kernel security update (IMPORTANT)
EPSS