CVE-2019-3840 Information

Description

A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html https://access.redhat.com/errata/RHSA-2019:2294 https://bugzilla.redhat.com/show_bug.cgi?id=1663051 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/ https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.3