CVE-2019-3840
At a glance
- Severity
- MEDIUM 5.8
- EPSS
- EPSS 1.48 % · percentile 74 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
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.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H | redhat |
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.0 | MEDIUM 6.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 3.5 | AV:N/AC:M/Au:S/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2019-13460
- GCVE · GCVE-0-2019-3840
CERT-FR advisories
- CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*< 5.0.0cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| The libvirt Project · libvirt | affected 5.0.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840
- https://bugzilla.redhat.com/show_bug.cgi?id=1663051
- https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
- https://access.redhat.com/errata/RHSA-2019:2294
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |