CVE-2017-16643

Source
Severity Medium
Remote No
Type Denial of service
Description
The parse_hid_report_descriptor function in drivers/input/tablet/gtco.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device. The issue occurs because parse_hid_report_descriptor() has a while (i < length) loop, which only guarantees that there's at least 1 byte in the buffer, but the loop body can read multiple bytes which causes out-of-bounds access.
Group Package Affected Fixed Severity Status Ticket
AVG-570 linux-lts 4.9.59-1 4.9.60-1 High Fixed
AVG-569 linux-zen 4.13.11-1 4.14-1 High Fixed
AVG-568 linux-hardened 4.13.11-1 4.14-1 High Fixed
AVG-484 linux 4.13.11-1 4.14-1 High Fixed
References
https://groups.google.com/forum/#!topic/syzkaller/McWFcOsA47Y
https://git.kernel.org/linus/a50829479f58416a013a4ccca791336af3c584c7