CVE-2017-15102

medium

Description

The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2fae9e5a7babada041e2e161699ade2447a01989

http://seclists.org/oss-sec/2017/q4/238

http://www.securityfocus.com/bid/101790

https://bugzilla.redhat.com/show_bug.cgi?id=1505905

https://github.com/torvalds/linux/commit/2fae9e5a7babada041e2e161699ade2447a01989

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

Details

Source: MITRE

Published: 2017-11-15

Updated: 2019-05-08

Type: CWE-476

Risk Information

CVSS v2

Base Score: 6.9

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

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 6.3

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

Impact Score: 5.9

Exploitability Score: 0.4

Severity: MEDIUM