CVE-2026-10651— Zephyr Project Zephyr 输入验证错误漏洞

Bluetooth Classic SDP parser truncation bug in bt_sdp_parse_attribute() leads to reachable assertion and possible out-of-bounds read

A malformed Bluetooth Classic SDP attribute can trigger a reachable assertion in Zephyr's SDP parser. In subsys/bluetooth/host/classic/sdp.c, bt_sdp_parse_attribute() accepts an input buffer once it contains the 1-byte attribute type and 2-byte attribute id, but then unconditionally pulls an additional byte for the value type without verifying that the byte is present. A truncated 3-byte attribute (for example 09 00 09) therefore reaches net_buf_simple_pull() with insufficient remaining length, triggering the __ASSERT_NO_MSG(buf->len >= len) check and a kernel panic in assert-enabled builds (denial of service). In builds where assertions are disabled, parsing may continue past the end of the available buffer, leading to an out-of-bounds read and undefined behavior.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

输入验证不恰当

Zephyr Project Zephyr 输入验证错误漏洞

zephyrproject-rtos Zephyr是zephyrproject-rtos的实时操作系统。 Zephyr Project Zephyr 4.4.0及之前版本存在安全漏洞，该漏洞源于SDP解析器中的bt_sdp_parse_attribute函数在接受包含1字节属性类型和2字节属性ID的输入缓冲区后，未验证值类型字节是否存在即无条件拉取额外字节，导致截断的3字节属性在net_buf_simple_pull中触发断言检查并引发内核崩溃，造成拒绝服务；在禁用断言的构建中，解析可能继续超出可用缓冲区

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