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Fencer Intel
high 8.8

CVE-2019-10168 json

The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept…

published 7y ago modified 4mo ago also EUVD-2019-2201

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

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.

Patch / fix

  • redhat libvirt 4.10.1, 5.4.1
  • libvirt Debian 14, Debian 13, Debian 12 5.0.0-4

debian advisories DEBIAN-CVE-2019-10168

  • SLOF RHEL 8 20171214-5.gitfa98132.module+el8.0.0.z+3418+a72cf898
  • hivex RHEL 8 1.3.15-6.module+el8.0.0.z+3418+a72cf898
  • netcf RHEL 8 0.2.8-10.module+el8.0.0.z+3418+a72cf898
  • nbdkit RHEL 8 1.4.2-4.module+el8.0.0.z+3418+a72cf898
  • libssh2 RHEL 8 1.8.0-7.module+el8.0.0.z+3418+a72cf898.1
  • libvirt RHEL 8 4.5.0-23.3.module+el8.0.0.z+3418+a72cf898
  • seabios RHEL 8 1.11.1-3.module+el8.0.0.z+3418+a72cf898
  • sgabios RHEL 8 1:0.20170427git-2.module+el8.0.0.z+3418+a72cf898

red hat advisories RHSA-2019:1580RHSA-2019:1699RHSA-2019:1579RHSA-2019:1762

  • libvirt SLE Module for Server Applications 15 SP1, SLE Module for Basesystem 15 SP1 5.1.0-8.6.1

suse advisories SUSE-SU-2019:1643-1

  • libvirt openSUSE Tumbleweed 7.7.0-2.1
  • libvirt openSUSE Leap 15.1 5.1.0-lp151.7.3.1

opensuse advisories openSUSE-SU-2024:11008-1openSUSE-SU-2019:1753-1

  • libvirt Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 5.5.0-r0

alpine advisories ALPINE-CVE-2019-10168

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-10168 updated cvss 8.8

libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs

  • Red Hat Enterprise Linux 8 Advanced Virtualization hivex 1.3.15-6.module+el8.0.0.z+3438+2851622e, nbdkit 1.4.2-4.module+el8.0.0.z+3438+2851622e, netcf 0.2.8-10.module+el8.0.0.z+3438+2851622e, seabios 1.12.0-1.module+el8.0.0.z+3438+2851622e, libiscsi 1.18.0-6.module+el8.0.0.z+3438+2851622e, libssh2 1.8.0-7.module+el8.0.0.z+3438+2851622e.1, +83 more
    fixed: vendor fix RHSA-2019:1762
  • Red Hat Enterprise Linux AppStream (v. 8) hivex 1.3.15-6.module+el8.0.0.z+3418+a72cf898, nbdkit 1.4.2-4.module+el8.0.0.z+3418+a72cf898, netcf 0.2.8-10.module+el8.0.0.z+3418+a72cf898, seabios 1.11.1-3.module+el8.0.0.z+3418+a72cf898, libiscsi 1.18.0-6.module+el8.0.0.z+3418+a72cf898, libssh2 1.8.0-7.module+el8.0.0.z+3418+a72cf898.1, +82 more
    fixed: vendor fix RHSA-2019:1580
  • Red Hat Enterprise Linux Client (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, libvirt-daemon-kvm 4.5.0-10.el7_6.12, libvirt-bash-completion 4.5.0-10.el7_6.12, +18 more Red Hat Enterprise Linux Client Optional (v. 7) libvirt-nss 4.5.0-10.el7_6.12, libvirt-admin 4.5.0-10.el7_6.12, libvirt-daemon-lxc 4.5.0-10.el7_6.12, libvirt-login-shell 4.5.0-10.el7_6.12, libvirt-lock-sanlock 4.5.0-10.el7_6.12 Red Hat Enterprise Linux ComputeNode (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-bash-completion 4.5.0-10.el7_6.12 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-nss 4.5.0-10.el7_6.12, libvirt-admin 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, libvirt-daemon-kvm 4.5.0-10.el7_6.12, libvirt-daemon-lxc 4.5.0-10.el7_6.12, +20 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, libvirt-daemon-kvm 4.5.0-10.el7_6.12, libvirt-bash-completion 4.5.0-10.el7_6.12, +16 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-nss 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-admin 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, +21 more
    +4 more products
    Red Hat Enterprise Linux Server (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, libvirt-daemon-kvm 4.5.0-10.el7_6.12, libvirt-bash-completion 4.5.0-10.el7_6.12, +18 more Red Hat Enterprise Linux Server Optional (v. 7) libvirt-nss 4.5.0-10.el7_6.12, libvirt-admin 4.5.0-10.el7_6.12, libvirt-daemon-lxc 4.5.0-10.el7_6.12, libvirt-login-shell 4.5.0-10.el7_6.12, libvirt-lock-sanlock 4.5.0-10.el7_6.12 Red Hat Enterprise Linux Workstation (v. 7) libvirt 4.5.0-10.el7_6.12, libvirt-libs 4.5.0-10.el7_6.12, libvirt-client 4.5.0-10.el7_6.12, libvirt-daemon 4.5.0-10.el7_6.12, libvirt-daemon-kvm 4.5.0-10.el7_6.12, libvirt-bash-completion 4.5.0-10.el7_6.12, +18 more Red Hat Enterprise Linux Workstation Optional (v. 7) libvirt-nss 4.5.0-10.el7_6.12, libvirt-admin 4.5.0-10.el7_6.12, libvirt-daemon-lxc 4.5.0-10.el7_6.12, libvirt-login-shell 4.5.0-10.el7_6.12, libvirt-lock-sanlock 4.5.0-10.el7_6.12
    fixed: vendor fix RHSA-2019:1579
  • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host 4.3.4-20190620.3.el7_6, redhat-virtualization-host-image-update 4.3.4-20190620.3.el7_6 Red Hat RHEL 7-based RHEV-H for RHEV 4 (build requirements) redhat-release-virtualization-host 4.3.4-1.el7ev, redhat-virtualization-host-image-update-placeholder 4.3.4-1.el7ev
    fixed: vendor fix RHSA-2019:1699
  • Red Hat Enterprise Linux 5 libvirt Red Hat Enterprise Linux 6 libvirt, libvirt-client, libvirt-python, libvirt-lock-sanlock Red Hat Storage 3 libvirt-lock-sanlock
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • libvirt libvirt

Classification

Weakness
  • CWE-284 Improper Access Control
  • CWE-250 Execution with Unnecessary Privileges
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.