Read the docs
TI-2018-12784 Aliases CVE-2018-17958GHSA-r358-8j8x-6jhw

Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.

Priority MEDIUM 48CWE-190Published · 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
Partial Red Hat: 5 fixed, 5 without a fix

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

Summary

Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.06288 93rd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 5 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 3.0.1VulnerableQEMU
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*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:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0Running onRed Hat
cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:*4.3VulnerableRed Hat
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 3.0.1 Vulnerable ·QEMU
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 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
  • 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:a:redhat:virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
  • cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Red Hat

Remediation

Red Hat 2 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

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 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: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17958
  2. 2026-10-03 Alias added: GHSA-r358-8j8x-6jhw

References

Patch 1

Advisory 7

Sources

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