CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SMP: derive legacy responder STK authentication from MITM state The legacy responder path in smp_random() currently labels the stored STK as authenticated whenever pending_sec_level is BT_SECURITY_HIGH. That reflects what the local service requested, not what the pairing flow actually achieved. For Just Works/Confirm legacy pairing, SMP_FLAG_MITM_AUTH stays clear and the resulting STK should remain unauthenticated even if the local side requested HIGH security. Use the established MITM state when storing the responder STK so the key metadata matches the pairing result. This also keeps the legacy path aligned with the Secure Connections code, which already treats JUST_WORKS/JUST_CFM as unauthenticated.
Засегнати продукти
- Linux Linux: fff3490f47810e2d34b91fb9e31103e923b11c2f преди 9a38659a3d06080715691bd3139f9c4b61f688e3; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 667f44f1392df6482483756458c48670e579e9ff; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 929db734d12db41ca5f95424db4612397f1bd4a7; fff3490f47810e2d34b91fb9e31103e923b11c2f преди b1c6a8e554a39b222c0879a288ea98e338fc4d77; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 0afc846bd80073ffcd2b8040f2b2fafaea3d9f72; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 061ee71ac6b03c9f8432fe49538c3682bfcf4cf3; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 9a6d0db176f082685e0b6149700c0baf3ce2aa8b; fff3490f47810e2d34b91fb9e31103e923b11c2f преди 20756fec2f0108cb88e815941f1ffff88dc286fe; 14ec593d6bb050cf40a4ade2f9ac9ca050e0412c; 3.15.5 преди 3.16
- Linux Linux: 3.16; преди 3.16; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.134 до 6.6.*; 6.12.81 до 6.12.*; 6.18.22 до 6.18.*; 6.19.12 до 6.19.*; от 7.0 нататък
Вид слабост
История
- 1 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-31773
- https://nvd.nist.gov/vuln/detail/CVE-2026-31773
- https://git.kernel.org/stable/c/9a38659a3d06080715691bd3139f9c4b61f688e3
- https://git.kernel.org/stable/c/667f44f1392df6482483756458c48670e579e9ff
- https://git.kernel.org/stable/c/929db734d12db41ca5f95424db4612397f1bd4a7
- https://git.kernel.org/stable/c/b1c6a8e554a39b222c0879a288ea98e338fc4d77
- https://git.kernel.org/stable/c/0afc846bd80073ffcd2b8040f2b2fafaea3d9f72
- https://git.kernel.org/stable/c/061ee71ac6b03c9f8432fe49538c3682bfcf4cf3
- https://git.kernel.org/stable/c/9a6d0db176f082685e0b6149700c0baf3ce2aa8b
- https://git.kernel.org/stable/c/20756fec2f0108cb88e815941f1ffff88dc286fe