VulnerabilityModified
CVE-2019-3840
An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.
MEDIUM 6.3EPSS 1.48%
Does this matter?
Lower severity and a low EPSS score (1.48%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.3 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 1.48% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- redhat/libvirt · opensuse/leap
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2294
- https://bugzilla.redhat.com/show_bug.cgi?id=1663051Exploit, Issue Tracking, Third Party Advisory, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840Exploit, Issue Tracking, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
- https://www.redhat.com/archives/libvir-list/2019-January/msg00241.htmlExploit, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2294
- https://bugzilla.redhat.com/show_bug.cgi?id=1663051Exploit, Issue Tracking, Third Party Advisory, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840Exploit, Issue Tracking, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/
- https://www.redhat.com/archives/libvir-list/2019-January/msg00241.htmlExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.