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.
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Fri, 01 May 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-05-01T16:29:06.245Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-37532
No data.
Status : Received
Published: 2026-05-01T17:16:22.897
Modified: 2026-05-01T17:16:22.897
Link: CVE-2026-37532
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