CVE-2019-10168 Information

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.

CVSS Vector

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

Reference

https://access.redhat.com/libvirt-privesc-vulnerabilities https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168 https://security.gentoo.org/glsa/202003-18

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8