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CVE-2026-90230: Linux

9.1

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 без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate() nvmet_execute_auth_send() allocates the DH-HMAC-CHAP message buffer with the host-supplied transfer length (tl) and hands it to nvmet_auth_negotiate() without passing tl along. nvmet_auth_negotiate() then reads the negotiate header and, for each of the halen hash identifiers and dhlen DH group identifiers, indexes into the fixed idlist[60] array (hashes at idlist[0..halen), groups at idlist[30..]). Neither the transfer length nor halen/dhlen is validated. A malicious or non-conformant host can report a tl smaller than the negotiate structure, or a halen/dhlen larger than the array (both are u8, up to 255), making the loops read past the end of the allocated buffer (heap out-of-bounds read). The sibling nvmet_auth_reply() already validates tl against the structure size; the negotiate path did not. Pass tl into nvmet_auth_negotiate(), reject a tl that does not cover the negotiate data plus one full protocol descriptor, and reject halen/dhlen larger than NVME_AUTH_DHCHAP_MAX_DH_IDS.

    Засегнати продукти

    • Linux Linux: db1312dd95488b5e6ff362ff66fcf953a46b1821 преди 89ff11b72f38976f3b5aea23a5228ee05e277209; db1312dd95488b5e6ff362ff66fcf953a46b1821 преди aaac783950b17c57df9b6f7344747cacb1a407ed; db1312dd95488b5e6ff362ff66fcf953a46b1821 преди c38a8186326799957d293d370136c128cd113916; db1312dd95488b5e6ff362ff66fcf953a46b1821 преди 7b81e4d2230e3d2d372c826180c4ef0efc244f31; db1312dd95488b5e6ff362ff66fcf953a46b1821 преди 5bb96cc218835769ab74ec7f3ea2bf81fbffe955
    • Linux Linux: 6.0; преди 6.0; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-90230: Linux | freedomonline.bg