CVE Vulnerabilities

CVE-2019-10167

Execution with Unnecessary Privileges

Published: Aug 02, 2019 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Ubuntu
MEDIUM

The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accepts an emulatorbin argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domains capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

Weakness

The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

Affected Software

Name Vendor Start Version End Version
Libvirt Redhat 4.0.0 (including) 4.10.1 (excluding)
Libvirt Redhat 5.0.0 (including) 5.4.1 (excluding)
Red Hat Enterprise Linux 7 RedHat libvirt-0:4.5.0-10.el7_6.12 *
Red Hat Enterprise Linux 8 RedHat virt:rhel-8000020190618154454.f8e95b4e *
Red Hat Enterprise Linux 8 Advanced Virtualization RedHat virt:8.0.0-8000020190620145550.f8e95b4e *
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 RedHat redhat-release-virtualization-host-0:4.3.4-1.el7ev *
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 RedHat redhat-virtualization-host-0:4.3.4-20190620.3.el7_6 *
Libvirt Ubuntu bionic *
Libvirt Ubuntu cosmic *
Libvirt Ubuntu devel *
Libvirt Ubuntu disco *
Libvirt Ubuntu eoan *
Libvirt Ubuntu esm-infra/bionic *
Libvirt Ubuntu esm-infra/xenial *
Libvirt Ubuntu trusty *
Libvirt Ubuntu xenial *

Potential Mitigations

References