CVE-2026-37530
HighSummary
AGL agl-service-can-low-level up to version 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function allocates a 6-byte stack buffer but copies up to 7 bytes, leading to controlled buffer overflow.
Risk Assessment
The buffer overflow can lead to return address overwrite and remote code execution (RCE) on 32-bit ARM ECUs without stack canaries, posing a serious security threat to the system.
Recommendation
It is recommended to update to the latest version of agl-service-can-low-level to eliminate this vulnerability and implement buffer overflow protection mechanisms.
Other vulnerabilities in AGL agl-service-can-low-level
Original NVD description (English source)
AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_request function in uds.c allocates a 6-byte stack buffer (MAX_DIAGNOSTIC_PAYLOAD_SIZE=6) but copies up to 7 bytes (MAX_UDS_REQUEST_PAYLOAD_LENGTH=7) via memcpy at an offset of 1+pid_length (2-3 bytes), resulting in 1-4 bytes of controlled stack overflow. The payload_length field (uint8_t) has no bounds check against the destination buffer. On 32-bit ARM automotive ECUs without stack canaries, this can lead to return address overwrite and RCE.