CVE-2017-17975 Information

Description

Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c in the Linux kernel through 4.14.10 allows attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration because a kfree of the usbtv data structure occurs during a usbtv_video_free call but the usbtv_video_fail label’s code attempts to both access and free this data structure.

CVSS Vector

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

Reference

http://linuxtesting.org/pipermail/ldv-project/2017-November/001008.html http://www.securityfocus.com/bid/102330 https://usn.ubuntu.com/3653-1/ https://usn.ubuntu.com/3653-2/ https://usn.ubuntu.com/3654-1/ https://usn.ubuntu.com/3654-2/ https://usn.ubuntu.com/3656-1/ https://usn.ubuntu.com/3657-1/ https://www.debian.org/security/2018/dsa-4188

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5