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CVE-2026-98171: 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 по мрежата, без особени условия, без вход и след действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs Fix several related bounds checking and pointer lifecycle issues in receive_encrypted_standard()'s handling of compound encrypted frames: - Clear next_buffer after assigning it to server->bigbuf. A stale next_buffer pointer can lead to a use-after-free on subsequent error paths. - Update pdu_length to the decrypted plaintext size (buf_size). Using the pre-decryption length allows NextCommand to point into stale ciphertext residue. - Reject next_cmd values smaller than MID_HEADER_SIZE(server). - Fix an integer overflow in the upper bound check by verifying pdu_length - next_cmd < MID_HEADER_SIZE(server), ensuring the trailing slice is large enough for a header.

    Засегнати продукти

    • Linux Linux: b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 1ed29f7a03417b405f38c09cfe04124883127b53; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 7f022867ec9f0166a0b4400385bb601b1c6b2c75; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 72eaef1f37a3b6bec11c342736834dc3707be3e4; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 491e33144dee872cffda207f6fcb09260728f803; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 8749946579708ea0d339034bb7f423a67dbe89cf; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 96c436e4b010711452b2872558938f4ef276492a; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 858d5ac22cb889266993e7670f9f0c4f4aeedd78; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 05762c5bc1cfdcac36747994fde2c04387a457f1
    • Linux Linux: 4.19; преди 4.19; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98171: Linux | freedomonline.bg