Описание
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.
A buffer overflow flaw was found in the way the Linux kernel's Intel AES-NI instructions optimized version of the RFC4106 GCM mode decryption functionality handled fragmented packets. A remote attacker could use this flaw to crash, or potentially escalate their privileges on, a system over a connection with an active AES-GCM mode IPSec security association.
Отчет
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-biscayne | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Fixed | RHSA-2015:1081 | 09.06.2015 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | kernel | Fixed | RHSA-2015:1199 | 30.06.2015 |
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2015:0981 | 12.05.2015 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2015:0987 | 12.05.2015 |
| Red Hat Enterprise MRG 2 | kernel-rt | Fixed | RHSA-2015:0989 | 12.05.2015 |
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Дополнительная информация
Статус:
7.1 High
CVSS2
Связанные уязвимости
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_g ...
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) socket.
ELSA-2015-0987: kernel security and bug fix update (IMPORTANT)
7.1 High
CVSS2