NULL pointer dereference in The Libvirt Project
CVE-2019-3840
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.
Published · last modified .
CVSS v3 metric
CVSS v3 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.
EPSS exploit prediction
EPSS: 0.015 (72.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- The Libvirt Project — versions 5.0.0
- openSUSE Leap — versions 15.0, 42.3
- Red Hat Libvirt
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Issue Tracking, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking, Vendor Advisory)
- www.redhat.com/archives/libvir-list/2019-January/msg00241.html (Exploit, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:2294 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3840?
- CVE-2019-3840 is a medium-severity vulnerability in The Libvirt Project, classified under NULL Pointer Dereference. CVSS score: 5.8/10. Published 2019-03-27.
- How severe is CVE-2019-3840?
- Medium severity. CVSS v3 base score is 5.8 out of 10.