CVE-2017-8924

medium

Description

The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=654b404f2a222f918af9b0cd18ad469d0c941a8e

http://www.debian.org/security/2017/dsa-3886

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4

http://www.securityfocus.com/bid/98451

https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e

Details

Source: MITRE

Published: 2017-05-12

Updated: 2019-04-16

Type: CWE-191

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 4.6

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 0.9

Severity: MEDIUM