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TI-2018-04154 Aliases CVE-2018-5748GHSA-vgrm-6fx3-7frj

qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory…

Priority LOW 39CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory consumption) via a large QEMU reply.

Why it matters now

EPSS 0.03175 88th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 14

CPEVersionsRoleVendor
cpe:2.3:a:redhat:libvirt:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
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:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
  • cpe:2.3:a:redhat:libvirt:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • 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:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
Show 4 more CPE
CPEVersionsRoleVendor
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: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: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
  • 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

Remediation

Red Hat 2 advisories

  • RHSA-2018:1929 Released 2018-06-19 · Red Hat rating Low
    libvirt security update
    • Red Hat Enterprise Linux Desktop (v. 6) libvirt-0.10.2-64.el6, libvirt-client-0.10.2-64.el6, libvirt-python-0.10.2-64.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) libvirt-devel-0.10.2-64.el6, libvirt-lock-sanlock-0.10.2-64.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) libvirt-0.10.2-64.el6, libvirt-client-0.10.2-64.el6, libvirt-python-0.10.2-64.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) libvirt-devel-0.10.2-64.el6, libvirt-lock-sanlock-0.10.2-64.el6
    • Red Hat Enterprise Linux Server (v. 6) libvirt-0.10.2-64.el6, libvirt-client-0.10.2-64.el6, libvirt-client-0.10.2-64.el6.ppc +3
    • Red Hat Enterprise Linux Server Optional (v. 6) libvirt-lock-sanlock-0.10.2-64.el6
    • Red Hat Enterprise Linux Workstation (v. 6) libvirt-0.10.2-64.el6, libvirt-client-0.10.2-64.el6, libvirt-devel-0.10.2-64.el6 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) libvirt-lock-sanlock-0.10.2-64.el6
    • Red Hat Storage Server 3 libvirt-lock-sanlock-0.10.2-64.el6
  • RHSA-2018:1396 Released 2018-05-14 · Red Hat rating Low
    libvirt security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4, libvirt-daemon-3.9.0-14.el7_5.4 +20
    • Red Hat Enterprise Linux Client Optional (v. 7) libvirt-admin-3.9.0-14.el7_5.4, libvirt-daemon-lxc-3.9.0-14.el7_5.4, libvirt-devel-3.9.0-14.el7_5.4 +4
    • Red Hat Enterprise Linux ComputeNode (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4, libvirt-libs-3.9.0-14.el7_5.4
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-admin-3.9.0-14.el7_5.4, libvirt-daemon-3.9.0-14.el7_5.4 +25
    • Red Hat Enterprise Linux Server (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4.ppc +25
    • Red Hat Enterprise Linux Server Optional (v. 7) libvirt-admin-3.9.0-14.el7_5.4, libvirt-daemon-lxc-3.9.0-14.el7_5.4, libvirt-lock-sanlock-3.9.0-14.el7_5.4 +3
    • Red Hat Enterprise Linux Workstation (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4, libvirt-daemon-3.9.0-14.el7_5.4 +22
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libvirt-admin-3.9.0-14.el7_5.4, libvirt-daemon-lxc-3.9.0-14.el7_5.4, libvirt-lock-sanlock-3.9.0-14.el7_5.4 +2
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4, libvirt-daemon-3.9.0-14.el7_5.4 +20
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libvirt-3.9.0-14.el7_5.4, libvirt-admin-3.9.0-14.el7_5.4, libvirt-client-3.9.0-14.el7_5.4 +25

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:1929
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:1396
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:1396
Red Hat Storage Server 3Fixed RHSA-2018:1929
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5748
  2. 2026-10-03 Alias added: GHSA-vgrm-6fx3-7frj

References

Patch 1

Advisory 4

Sources

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