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CVE-2019-3840

Published: 27 February 2019

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.

Notes

AuthorNote
mdeslaur
introduced in 1.2.14

Priority

Medium

Cvss 3 Severity Score

6.3

Score breakdown

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
upstream
Released (5.0.0-1)
trusty Not vulnerable
(code not present)
xenial
Released (1.3.1-1ubuntu10.25)
bionic
Released (4.0.0-1ubuntu8.8)
cosmic
Released (4.6.0-2ubuntu3.4)
Patches:
upstream: https://libvirt.org/git/?p=libvirt.git;a=commit;h=7cfd1fbb1332ae5df678b9f41a62156cb2e88c73

Severity score breakdown

Parameter Value
Base score 6.3
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H