Описание
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: toshiba_acpi: Fix array out-of-bounds access
In order to use toshiba_dmi_quirks[] together with the standard DMI
matching functions, it must be terminated by a empty entry.
Since this entry is missing, an array out-of-bounds access occurs
every time the quirk list is processed.
Fix this by adding the terminating empty entry.
A vulnerability was found in the Linux kernel's toshiba_acpi driver which does not terminate with an empty entry, something necessary to use toshiba_dmi_quircks[] together with teh standard DMI matching functions. This results in an array out-of-bounds access and could lead to memory corruption or crashes.
Отчет
A low impact out-of-bounds read was found in the Linux kernel toshiba_acpi driver. The toshiba_dmi_quirks[] array used by the driver was missing the terminating empty entry required when it is used with the standard DMI matching functions, so an out-of-bounds access occurs every time the quirk list is processed, which can result in kernel instability or a crash and therefore a denial of service. Red Hat rates this flaw as low impact because the out-of-bounds access is triggered during driver quirk processing rather than by attacker-controlled input and the impact is limited to availability, with no confidentiality or integrity impact; this is a significant difference from the NIST (7.8, important) and CVE.org (7.1, important) scores, which assume a broader local attack scenario. The issue was introduced upstream in Linux kernel 6.1 and is not present in the kernel versions shipped in Red Hat Enterprise Linux, so Red Hat Enterprise Linux kernel and kernel-rt are not affected. Only the Fedora community kernel is affected, with the fix handled through the Fedora community update process.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected |
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Дополнительная информация
Статус:
EPSS
4.4 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_acpi: Fix array out-of-bounds access In order to use toshiba_dmi_quirks[] together with the standard DMI matching functions, it must be terminated by a empty entry. Since this entry is missing, an array out-of-bounds access occurs every time the quirk list is processed. Fix this by adding the terminating empty entry.
In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_acpi: Fix array out-of-bounds access In order to use toshiba_dmi_quirks[] together with the standard DMI matching functions, it must be terminated by a empty entry. Since this entry is missing, an array out-of-bounds access occurs every time the quirk list is processed. Fix this by adding the terminating empty entry.
In the Linux kernel, the following vulnerability has been resolved: p ...
In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_acpi: Fix array out-of-bounds access In order to use toshiba_dmi_quirks[] together with the standard DMI matching functions, it must be terminated by a empty entry. Since this entry is missing, an array out-of-bounds access occurs every time the quirk list is processed. Fix this by adding the terminating empty entry.
Уязвимость драйвера toshiba_acpi (drivers/platform/x86/toshiba_acpi.c) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании.
EPSS
4.4 Medium
CVSS3