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TI-2020-12662 Aliases CVE-2020-16092GHSA-ffj7-8wcx-cprg

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing.

Priority LOW 18CWE-617Published · 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 · Low
Fix status
Partial Red Hat: 12 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-617.

Summary

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

Why it matters now

EPSS 0.00377 31st percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 12 fixed, 4 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 · 7

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 5.0.0VulnerableQEMU
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04VulnerableCanonical
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*15.2VulnerableopenSUSE
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 5.0.0 Vulnerable ·QEMU
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* 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:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
  • cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE

Remediation

Red Hat 6 advisories

  • RHSA-2021:1762 Released 2021-05-18 · Red Hat rating Moderate
    virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src::virt-devel:rhel, hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.i686::virt-devel:rhel, hivex-devel-1.3.18-20.module+el8.3.0+6423+e4cb6418.i686::virt-devel:rhel +47
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.noarch::virt:rhel, SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src::virt:rhel, hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64::virt:rhel +47
  • RHSA-2021:0934 Released 2021-03-18 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 13.0 qemu-img-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-rhev-10:2.12.0-48.el7_9.2 +1
  • RHSA-2021:0459 Released 2021-02-09 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • RHV-M 4.3 qemu-img-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-rhev-10:2.12.0-48.el7_9.2 +1
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.2, qemu-kvm-rhev-10:2.12.0-48.el7_9.2 +1
Show 3 more Red Hat advisories
  • RHSA-2021:0346 Released 2021-02-02 · Red Hat rating Moderate
    qemu-kvm-ma security update
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-ma-10:2.12.0-48.el7_9.2, qemu-kvm-common-ma-10:2.12.0-48.el7_9.2, qemu-kvm-ma-10:2.12.0-48.el7_9.2 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) qemu-kvm-common-ma-10:2.12.0-48.el7_9.2, qemu-kvm-ma-10:2.12.0-48.el7_9.2, qemu-kvm-tools-ma-10:2.12.0-48.el7_9.2
  • RHSA-2021:0347 Released 2021-02-02 · Red Hat rating Moderate
    qemu-kvm security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-175.el7_9.3, qemu-kvm-10:1.5.3-175.el7_9.3, qemu-kvm-common-10:1.5.3-175.el7_9.3 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-175.el7_9.3, qemu-kvm-10:1.5.3-175.el7_9.3, qemu-kvm-common-10:1.5.3-175.el7_9.3 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-175.el7_9.3, qemu-kvm-10:1.5.3-175.el7_9.3, qemu-kvm-common-10:1.5.3-175.el7_9.3 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-175.el7_9.3, qemu-kvm-10:1.5.3-175.el7_9.3, qemu-kvm-common-10:1.5.3-175.el7_9.3 +1
  • RHSA-2020:5111 Released 2020-11-18 · Red Hat rating Moderate
    virt:8.2 and virt-devel:8.2 security and bug fix update
    • Advanced Virtualization CodeReady Builder for RHEL 8.2.1 SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.src::virt-devel:8.2, hivex-1.3.18-20.module+el8.2.0+5588+63a201c3.i686::virt-devel:8.2, hivex-devel-1.3.18-20.module+el8.2.0+5588+63a201c3.i686::virt-devel:8.2 +47
    • Advanced Virtualization for RHEL 8.2.1 SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.noarch::virt:8.2, SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.src::virt:8.2, hivex-1.3.18-20.module+el8.2.0+5588+63a201c3.aarch64::virt:8.2 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix yet
Red Hat OpenStack Platform 10 (Newton)AffectedNo fix planned: Out of support scope
Advanced Virtualization CodeReady Builder for RHEL 8.2.1Fixed RHSA-2020:5111
Advanced Virtualization for RHEL 8.2.1Fixed RHSA-2020:5111
RHV-M 4.3Fixed RHSA-2021:0459
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1762
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:1762
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:0347
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:0347
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:0346, RHSA-2021:0347
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2021:0346
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:0347
Red Hat OpenStack Platform 13.0Fixed RHSA-2021:0934
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2021:0459
Not affected: 1 product
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16092
  2. 2026-10-03 Alias added: GHSA-ffj7-8wcx-cprg

References

Patch 2

Advisory 6

Sources

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