Описание
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: validate LTK enc_size on load
Load Long Term Keys stores the user-provided enc_size and later uses
it to size fixed-size stack operations when replying to LE LTK
requests. An enc_size larger than the 16-byte key buffer can therefore
overflow the reply stack buffer.
Reject oversized enc_size values while validating the management LTK
record so invalid keys never reach the stored key state.
A flaw was found in the Linux kernel's Bluetooth management (MGMT) component. An attacker could exploit a vulnerability in how Long Term Keys (LTK) are loaded. By providing an oversized encryption size, a stack buffer overflow can occur, potentially leading to a denial of service.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Affected | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | ||
| Red Hat Enterprise Linux 10 | kernel | Fixed | RHSA-2026:21557 | 28.05.2026 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2026:21745 | 28.05.2026 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2026:21706 | 28.05.2026 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2026:21556 | 28.05.2026 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2026:21556 | 28.05.2026 |
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Дополнительная информация
Статус:
EPSS
7.3 High
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer. Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer. Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
In the Linux kernel, the following vulnerability has been resolved: B ...
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer. Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
Уязвимость модуля net/bluetooth/mgmt.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.3 High
CVSS3