Към съдържанието
Търсене

CVE-2026-99113: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: zero the FS_OBJECT_ID_INFORMATION buffer before filling it in smb2_get_info_filesystem() reports 64 bytes for FS_OBJECT_ID_INFORMATION, that is the whole of struct object_id_info, but writes only 46 of them: - objid[] is 16 bytes, and when the volume UUID is not available only sizeof(stfs.f_fsid) (8) bytes are copied into it; - extended_info.version_string[] is STRING_LENGTH (28) bytes, and only strlen("1.1.0") (5) bytes are copied into it. The response buffer is zeroed on allocation (kvzalloc() in smb2_allocate_rsp_buf()), so for a standalone request the remaining 31 bytes are zero. In a compound request they need not be. The offset of the next response is advanced by the length pinned for the previous one, so if a preceding command wrote its reply into the buffer and then failed, smb2_set_err_rsp() pins only the short error response and the next reply lands inside the area that has already been written. Only the header is cleared there: memset((char *)rsp_hdr, 0, sizeof(struct smb2_hdr) + 2); The client then receives up to 31 bytes of a response it was not meant to see, including one that failed with an access denied error. Clear the structure before filling it in. As a side effect version_string is now NUL terminated.

    Засегнати продукти

    • Linux Linux: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди dbd0f13de153d7094b85034daffa7533d7c2b17a; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 90898571fb2c6813c007a62833dd65c00481d44e; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 1a35a81c302b36fe4acd35b47b51d5d73e89ba0a; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 3fc33ac2125b60f103592b83821f69f3f9aa23ba; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 898cb4f2e12a5ddea1b2d821cc642c3100f46da7; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 015fffa48e96ca8d73a627445341ccff86b02251; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 399aa12450a61a5c73dc77e73f069ece9687c95d
    • Linux Linux: 5.15; преди 5.15; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.161 до 6.6.*; 6.12.115 до 6.12.*; 6.18.59 до 6.18.*; 7.2.13 до 7.2.*; от 7.3 нататък

    История

    • 28 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-99113: Linux | freedomonline.bg