Description (CNA)
COVESA Open1722 through 0.9.2 contains an integer truncation vulnerability in acf-can-listener.c that allows unauthenticated remote attackers to cause the CAN listener to transmit process stack memory onto the CAN bus by sending a rejected UDP datagram with a matching AVTP stream ID. The num_can_msgs variable declared as uint8_t truncates the -1 error return value from avtp_to_can() to 255, causing a write loop to iterate 255 times over a 15-slot stack array and leak approximately 18 KB of adjacent stack memory as roughly 240 CAN frames to any recipient on the CAN bus.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| COVESA / Open1722 | affected 0 through 0.9.2 |
CWE
CWE-197
References
- https://github.com/COVESA/Open1722/issues/154
- https://www.vulncheck.com/advisories/covesa-open1722-stack-memory-disclosure-via-acf-can-listener-c-integer-truncation
ADP enrichment
No English description supplied.
No references supplied.