CVE-2019-3840

MEDIUM
5.8
CVSS Score
Published: March 27, 2019 at 12:24 PM UTC
Updated: June 17, 2026 at 02:35 AM UTC
3 products affected across 3 vendorsLeapLibvirtLibvirt

Using libvirt by The libvirt Project?

Get instant alerts when new vulnerabilities affect libvirt - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.8
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.0.0
Affected range stops below 5.0.0, so it looks safe — our inference, not a vendor statement

References (7)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html
x_refsource_CONFIRMExploitIssue TrackingThird Party AdvisoryVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1663051
x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840

CVSS

5.8MEDIUMredhat
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card