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TI-2019-07487 Aliases CVE-2019-10166GHSA-g9cg-gvh5-48hm

Improper access control in libvirt

Priority LOW 34CWE-284Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-284.

Summary

It was discovered that libvirtd, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, would permit readonly clients to use the virDomainManagedSaveDefineXML() API, which would permit them to modify managed save state files. If a managed save had already been created by a privileged user, a local attacker could modify this file such that libvirtd would execute an arbitrary program when the domain was resumed.

Why it matters now

EPSS 0.00469 40th percentileScored 2026-11-07
Fix Fixed libvirt (libvirt): 4.10.1, 5.4.1Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
libvirtlibvirt4.x to before 4.10.1; 5.x to before 5.4.14.10.1, 5.4.1Patch availableCNA
  • libvirt Vendorlibvirt Affected 4.x to before 4.10.1; 5.x to before 5.4.1 Fixed in 4.10.1, 5.4.1 Patch available CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*4.0.0 to before 4.10.1; 5.0.0 to before 5.4.1VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
  • cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.10.1; 5.0.0 to before 5.4.1 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:virtualization:4.3:*:*:*:*:*:*:*4.3VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:virtualization:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Red Hat

Remediation

  • Fix · CNA libvirt (libvirt) Fixed in 4.10.1, 5.4.1

Red Hat 4 advisories

  • RHSA-2019:1762 Released 2019-07-11 · Red Hat rating Important
    virt:8.0.0 security update
    • Red Hat Enterprise Linux 8 Advanced Virtualization SLOF-20180702-3.git9b7ab2f.module+el8.0.0.z+3438+2851622e.noarch::virt:8.0.0, SLOF-20180702-3.git9b7ab2f.module+el8.0.0.z+3438+2851622e.src::virt:8.0.0, hivex-1.3.15-6.module+el8.0.0.z+3438+2851622e.aarch64::virt:8.0.0 +47
  • RHSA-2019:1699 Released 2019-07-08 · Red Hat rating Important
    redhat-virtualization-host security and enhancement update
    • 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
    • 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
  • RHSA-2019:1580 Released 2019-06-20 · Red Hat rating Important
    virt:rhel security update
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20171214-5.gitfa98132.module+el8.0.0.z+3418+a72cf898.noarch::virt:rhel, SLOF-20171214-5.gitfa98132.module+el8.0.0.z+3418+a72cf898.src::virt:rhel, hivex-1.3.15-6.module+el8.0.0.z+3418+a72cf898.aarch64::virt:rhel +47
Show 1 more Red Hat advisories
  • RHSA-2019:1579 Released 2019-06-20 · Red Hat rating Important
    libvirt security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +21
    • Red Hat Enterprise Linux Client Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-devel-4.5.0-10.el7_6.12 +4
    • Red Hat Enterprise Linux ComputeNode (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libvirt-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 +25
    • Red Hat Enterprise Linux Server (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +26
    • Red Hat Enterprise Linux Server Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-lock-sanlock-4.5.0-10.el7_6.12 +3
    • Red Hat Enterprise Linux Workstation (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +23
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-lock-sanlock-4.5.0-10.el7_6.12 +2
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +21
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-admin-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12 +26

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
RHEL 7-based RHEV-H for RHEV 4 (build requirements)Fixed RHSA-2019:1699
Red Hat Enterprise Linux 8 Advanced VirtualizationFixed RHSA-2019:1762
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:1580
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Virtualization 4 Hypervisor for RHEL 7Fixed RHSA-2019:1699
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Storage 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-10166
  2. 2026-10-03 Alias added: GHSA-g9cg-gvh5-48hm

References

Advisory 3

  • TI-2019-07455 Incorrect permission assignment in libvirt CVSS 3.0HIGH 8.8
  • TI-2018-00984 Uncontrolled resource consumption in libvirt CVSS 3.0HIGH 7.5
  • TI-2019-07489 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2019-07488 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2019-07482 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2020-08604 NULL pointer dereference in libvirt CVSS 3.1MEDIUM 6.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences