CVE-2019-10168

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept an "emulator" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-250 CWE-284 CWE-22

Affected software

Vendor	Product	Versions
libvirt	libvirt	4.x.x before 4.10.1; 5.x.x before 5.4.1

References

https://access.redhat.com/libvirt-privesc-vulnerabilitiesVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168Issue Tracking, Third Party Advisory, Vendor Advisory
https://security.gentoo.org/glsa/202003-18Third Party Advisory
https://access.redhat.com/libvirt-privesc-vulnerabilitiesVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168Issue Tracking, Third Party Advisory, Vendor Advisory
https://security.gentoo.org/glsa/202003-18Third Party Advisory

Timeline

Published: Aug 2, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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