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TI-2018-05696 Aliases CVE-2018-7858GHSA-f62g-jrwm-hq59

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support…

Priority LOW 26CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 13 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.

Why it matters now

EPSS 0.0061 49th percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 13 fixed, 3 without a fix

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 · 16

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 2.11.2VulnerableQEMU
cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*42.3VulnerableopenSUSE
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: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:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.11.2 Vulnerable ·QEMU
  • cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* Versions 42.3 Vulnerable ·openSUSE
  • 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
  • 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 6 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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
  • 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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical

Remediation

Red Hat 7 advisories

  • RHSA-2018:2162 Released 2018-07-10 · Red Hat rating Important
    qemu-kvm security update
    • Red Hat Enterprise Linux Desktop (v. 6) qemu-guest-agent-2:0.12.1.2-2.506.el6_10.1, qemu-img-2:0.12.1.2-2.506.el6_10.1, qemu-kvm-2:0.12.1.2-2.506.el6_10.1 +1
    • Red Hat Enterprise Linux HPC Node (v. 6) qemu-guest-agent-2:0.12.1.2-2.506.el6_10.1, qemu-img-2:0.12.1.2-2.506.el6_10.1, qemu-kvm-2:0.12.1.2-2.506.el6_10.1 +1
    • Red Hat Enterprise Linux Server (v. 6) qemu-guest-agent-2:0.12.1.2-2.506.el6_10.1, qemu-img-2:0.12.1.2-2.506.el6_10.1, qemu-kvm-2:0.12.1.2-2.506.el6_10.1 +1
    • Red Hat Enterprise Linux Workstation (v. 6) qemu-guest-agent-2:0.12.1.2-2.506.el6_10.1, qemu-img-2:0.12.1.2-2.506.el6_10.1, qemu-kvm-2:0.12.1.2-2.506.el6_10.1 +1
  • RHSA-2018:1644 Released 2018-05-22 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-common-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-rhev-10:2.10.0-21.el7_5.3 +1
  • RHSA-2018:1646 Released 2018-05-22 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-common-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-rhev-10:2.10.0-21.el7_5.3 +1
Show 4 more Red Hat advisories
  • RHSA-2018:1643 Released 2018-05-22 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 12.0 qemu-img-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-common-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-rhev-10:2.10.0-21.el7_5.3 +1
  • RHSA-2018:1645 Released 2018-05-22 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 9.0 qemu-img-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-common-rhev-10:2.10.0-21.el7_5.3, qemu-kvm-rhev-10:2.10.0-21.el7_5.3 +1
  • RHSA-2018:1416 Released 2018-05-14 · Red Hat rating Moderate
    qemu-kvm security update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-156.el7_5.1, qemu-kvm-10:1.5.3-156.el7_5.1, qemu-kvm-common-10:1.5.3-156.el7_5.1 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-156.el7_5.1, qemu-kvm-10:1.5.3-156.el7_5.1, qemu-kvm-common-10:1.5.3-156.el7_5.1 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-156.el7_5.1, qemu-kvm-10:1.5.3-156.el7_5.1, qemu-kvm-common-10:1.5.3-156.el7_5.1 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-156.el7_5.1, qemu-kvm-10:1.5.3-156.el7_5.1, qemu-kvm-common-10:1.5.3-156.el7_5.1 +1
  • RHSA-2018:1369 Released 2018-05-10 · Red Hat rating Moderate
    qemu-kvm-rhev security and bug fix update
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.10.0-21.el7_5.2, qemu-kvm-common-rhev-10:2.10.0-21.el7_5.2, qemu-kvm-rhev-10:2.10.0-21.el7_5.2 +1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)AffectedNo fix planned: Will not fix
Red Hat OpenStack Platform 11 (Ocata)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:1416
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:1416
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:2162
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2018:2162
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:2162
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:1416
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:2162
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:1416
Red Hat OpenStack Platform 10.0Fixed RHSA-2018:1644
Red Hat OpenStack Platform 12.0Fixed RHSA-2018:1643
Red Hat OpenStack Platform 8.0 (Liberty)Fixed RHSA-2018:1646
Red Hat OpenStack Platform 9.0Fixed RHSA-2018:1645
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2018:1369
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-7858
  2. 2026-10-03 Alias added: GHSA-f62g-jrwm-hq59

References

Patch 2

Advisory 6

Sources

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