CVE-2018-19824

MEDIUM

Description

In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.

References

http://www.securityfocus.com/bid/106109

https://bugzilla.suse.com/show_bug.cgi?id=1118152

https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=5f8cf712582617d523120df67d392059eaf2fc4b

https://github.com/torvalds/linux/commit/5f8cf712582617d523120df67d392059eaf2fc4b

https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html

https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html

https://support.f5.com/csp/article/K98155950

https://usn.ubuntu.com/3879-1/

https://usn.ubuntu.com/3879-2/

https://usn.ubuntu.com/3930-1/

https://usn.ubuntu.com/3930-2/

https://usn.ubuntu.com/3931-1/

https://usn.ubuntu.com/3931-2/

https://usn.ubuntu.com/3933-1/

https://usn.ubuntu.com/3933-2/

Details

Source: MITRE

Published: 2018-12-03

Updated: 2019-05-09

Type: CWE-416

Risk Information

CVSS v2.0

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH