CVE-2019-10168

moderate-risk

Published 2019-08-02

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.

Do I need to act?

0.23% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (13)

Libvirt

Enterprise Linux

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Server Aus

Enterprise Linux Server Eus

Enterprise Linux Server Tus

Enterprise Linux Workstation

Virtualization

Affected Vendors

Redhat

References (6)

Vendor Advisory https://access.redhat.com/libvirt-privesc-vulnerabilities

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168

Third Party Advisory https://security.gentoo.org/glsa/202003-18

Vendor Advisory https://access.redhat.com/libvirt-privesc-vulnerabilities

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168

Third Party Advisory https://security.gentoo.org/glsa/202003-18

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 1/34 · Minimal

Exposure 17/34 · Moderate