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CVE-2026-31622: Linux

8.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: NFC: digital: Bounds check NFC-A cascade depth in SDD response handler The NFC-A anti-collision cascade in digital_in_recv_sdd_res() appends 3 or 4 bytes to target->nfcid1 on each round, but the number of cascade rounds is controlled entirely by the peer device. The peer sets the cascade tag in the SDD_RES (deciding 3 vs 4 bytes) and the cascade-incomplete bit in the SEL_RES (deciding whether another round follows). ISO 14443-3 limits NFC-A to three cascade levels and target->nfcid1 is sized accordingly (NFC_NFCID1_MAXSIZE = 10), but nothing in the driver actually enforces this. This means a malicious peer can keep the cascade running, writing past the heap-allocated nfc_target with each round. Fix this by rejecting the response when the accumulated UID would exceed the buffer. Commit e329e71013c9 ("NFC: nci: Bounds check struct nfc_target arrays") fixed similar missing checks against the same field on the NCI path.

    Засегнати продукти

    • Linux Linux: 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 9ba6bb09e00b922d902f684f575779e5433fe6e3; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди f83b399aa05a0712e3b1569a30d3d90b3533d2ef; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 20663102c14566e900e1d2f679e30b7f1694f387; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 2819f34e08bdffb6f06a51c67948ec5737fb166a; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 1bec5698b55aa2be5c3b983dba657c01d0fd3dbc; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 5a59bf70c38ee1eb4be03bab830bbc3a6f0bd1f1; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 8d9d9bf3565271ca7ab9c716a94e87296177e7ba; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди cc024a3de265ef6c58957f4990eccb9f806208cb; 2c66daecc4092e6049673c281b2e6f0d5e59a94c преди 46ce8be2ced389bccd84bcc04a12cf2f4d0c22d1
    • Linux Linux: 3.13; преди 3.13; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.136 до 6.6.*; 6.12.83 до 6.12.*; 6.18.24 до 6.18.*; 6.19.14 до 6.19.*; 7.0.1 до 7.0.*; от 7.1 нататък
    • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

    История

    • 24 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-31622: Linux | freedomonline.bg