CVE-2019-3840 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.3 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score:  5.8 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html Mailing List  Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html Mailing List  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:2294
https://bugzilla.redhat.com/show_bug.cgi?id=1663051 Exploit  Issue Tracking  Third Party Advisory  Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840 Exploit  Issue Tracking  Patch  Vendor Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html Exploit  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-3840
NVD Published Date:
03/27/2019
NVD Last Modified:
05/05/2019
Source:
Red Hat, Inc.