漏洞信息
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Vulnerability Title
Out-of-bounds write in nRF70 Wi-Fi driver power-save event handler (unbounded TWT flow count)
Vulnerability Description
The nRF70 Wi-Fi driver's power-save event handler nrf_wifi_event_proc_get_power_save_info() in drivers/wifi/nrf_wifi/src/wifi_mgmt.c copied TWT (Target Wake Time) flow entries from an nrf_wifi_umac_event_power_save_info event into the fixed-size twt_flows[WIFI_MAX_TWT_FLOWS] (8-element) array of a caller-supplied struct wifi_ps_config, looping over event-provided num_twt_flows without validating it against WIFI_MAX_TWT_FLOWS or checking event_len. When num_twt_flows exceeds 8, the handler writes past the destination array (which is typically on the caller's stack, e.g. the wifi ps shell command) -- an out-of-bounds write of ~40-byte TWT entries -- and reads twt_flow_info[i] past the event buffer. The event is delivered by the nRF70 co-processor firmware in response to a host-initiated power-save GET, so reaching the overflow requires the firmware to emit a malformed or out-of-range event; the trust boundary is host-to-trusted-coprocessor rather than a direct remote-AP write, with over-the-air influence on the flow count being indirect and bounded by the 3-bit TWT flow-id space. Affected: builds with CONFIG_NRF70_STA_MODE on releases through v4.4.0. The fix rejects events with num_twt_flows > WIFI_MAX_TWT_FLOWS or with event_len shorter than the claimed entries, and adds a NULL check on the caller buffer.
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Vulnerability Type
跨界内存写
Vulnerability Title
Zephyr Project Zephyr 缓冲区错误漏洞
Vulnerability Description
zephyrproject zephyr是zephyrproject组织开源的一款实时操作系统内核。 Zephyr Project Zephyr 4.4.0版本存在缓冲区错误漏洞,该漏洞源于nRF70 Wi-Fi驱动器的省电事件处理程序在复制TWT流条目时未对num_twt_flows进行验证,可能导致越界写入和越界读取。
CVSS Information
N/A
Vulnerability Type
N/A