CVE-2018-19824 Information

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.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/106109 https://access.redhat.com/errata/RHSA-2019:2703 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/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8