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TI-2018-12788 Aliases CVE-2018-17963GHSA-8mrp-f43f-c35w

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX…

Priority MEDIUM 50CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 7 fixed, 5 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.

Why it matters now

EPSS 0.04653 91st percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 7 fixed, 5 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 3.0.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:3.1.0:rc0:*:*:*:*:*:*3.1.0 rc0VulnerableQEMU
cpe:2.3:a:qemu:qemu:3.1.0:rc1:*:*:*:*:*:*3.1.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:3.1.0:rc2:*:*:*:*:*:*3.1.0 rc2VulnerableQEMU
cpe:2.3:a:qemu:qemu:3.1.0:rc3:*:*:*:*:*:*3.1.0 rc3VulnerableQEMU
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: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:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 3.0.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:3.1.0:rc0:*:*:*:*:*:* Versions 3.1.0 rc0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:3.1.0:rc1:*:*:*:*:*:* Versions 3.1.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:3.1.0:rc2:*:*:*:*:*:* Versions 3.1.0 rc2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:3.1.0:rc3:*:*:*:*:*:* Versions 3.1.0 rc3 Vulnerable ·QEMU
  • 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: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
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*10VulnerableRed Hat
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*13VulnerableRed Hat
cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:*14VulnerableRed Hat
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:*4.3VulnerableRed Hat
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* Versions 13 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:* Versions 14 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2019:2553 Released 2019-08-22 · Red Hat rating Important
    qemu-kvm-rhev security, bug fix, and enhancement update
    • RHV-M 4.3 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
  • RHSA-2019:2425 Released 2019-08-09 · Red Hat rating Important
    qemu-kvm-rhev security and bug fix update
    • Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
    • Red Hat OpenStack Platform 13.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
    • Red Hat OpenStack Platform 14.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
  • RHSA-2019:2166 Released 2019-08-06 · Red Hat rating Moderate
    qemu-kvm-ma security and bug fix update
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-ma-10:2.12.0-33.el7, qemu-kvm-common-ma-10:2.12.0-33.el7, qemu-kvm-ma-10:2.12.0-33.el7 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) qemu-kvm-common-ma-10:2.12.0-33.el7, qemu-kvm-ma-10:2.12.0-33.el7, qemu-kvm-tools-ma-10:2.12.0-33.el7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat OpenStack Platform 12 (Pike)AffectedNo fix yet
Red Hat OpenStack Platform 8 (Liberty)AffectedNo fix planned: Will not fix
Red Hat OpenStack Platform 9 (Mitaka)AffectedNo fix planned: Will not fix
RHV-M 4.3Fixed RHSA-2019:2553
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2166
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2166
Red Hat OpenStack Platform 10.0Fixed RHSA-2019:2425
Red Hat OpenStack Platform 13.0Fixed RHSA-2019:2425
Red Hat OpenStack Platform 14.0Fixed RHSA-2019:2425
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2019:2553
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17963
  2. 2026-10-03 Alias added: GHSA-8mrp-f43f-c35w

References

Patch 2

Advisory 7

Sources

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