CVE-2019-19332 Information

Description

An out-of-bounds memory write issue was found in the Linux Kernel version 3.13 through 5.4 in the way the Linux kernel’s KVM hypervisor handled the ‘KVM_GET_EMULATED_CPUID’ ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the ‘/dev/kvm’ device could use this flaw to crash the system resulting in a denial of service.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19332 https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https://lore.kernel.org/kvm/000000000000ea5ec20598d90e50@google.com/ https://security.netapp.com/advisory/ntap-20200204-0002/ https://usn.ubuntu.com/4254-1/ https://usn.ubuntu.com/4254-2/ https://usn.ubuntu.com/4258-1/ https://usn.ubuntu.com/4284-1/ https://usn.ubuntu.com/4287-1/ https://usn.ubuntu.com/4287-2/ https://www.openwall.com/lists/oss-security/2019/12/16/1

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

HIGH

Base Severity

6.1