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CVE-2026-37530

Stack Buffer Overflow in agl-service-can-low-level Enables Remote Code Execution via CAN Bus on 32-bit ARM ECUs

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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Automotivelinux Linuxfoundation
Products
Agl-service-can-low-level Automotive Grade Linux
CVE-2026-37532

Heap Buffer Over‑Read in AGL isotp-c Library Allows Arbitrary Memory Disclosure

AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, &data[1], payload_length) reads up to 8 bytes past the end of the data buffer.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Automotivelinux Linuxfoundation
Products
Agl-service-can-low-level Automotive Grade Linux
CVE-2026-42485

Stack Buffer Overflow in AGL agl-service-can-low-level UDS Library Enables Remote Code Execution on 32-bit Automotive ECUs

AGL agl-service-can-low-level 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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Automotivelinux
Products
Agl-service-can-low-level