---
id: CVE-2023-3019
title: 'Qemu: e1000e: heap use-after-free in e1000e_write_packet_to_guest()'
summary: >-
  A DMA reentrancy issue leading to a use-after-free error was found in the
  e1000e NIC emulation code in QEMU. This issue could allow a privileged guest
  user to crash the QEMU process on the host, resulting in a denial of service.
severity: medium
cvss: 6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-416
vendor: Red Hat
product: 'virt-devel:rhel'
affected:
  - 'virt-devel:rhel (all versions)'
  - 'virt:rhel (all versions)'
  - 'virt-devel:rhel (all versions)'
  - 'virt:rhel (all versions)'
  - 'virt-devel:rhel (all versions)'
  - 'virt:rhel (all versions)'
  - qemu-kvm (all versions)
  - qemu-kvm
  - qemu-kvm
  - qemu-kvm-ma
  - 'virt:av/qemu-kvm (all versions)'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-12-03T15:26:38.315489Z'
published: '2023-07-24'
updated: '2026-11-07'
sourceUpdated: '2026-11-07T13:41:42.165Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-3019'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2024:0135'
    label: 'RHSA-2024:0135'
  - url: 'https://access.redhat.com/errata/RHSA-2024:0404'
    label: 'RHSA-2024:0404'
  - url: 'https://access.redhat.com/errata/RHSA-2024:0569'
    label: 'RHSA-2024:0569'
  - url: 'https://access.redhat.com/errata/RHSA-2024:2135'
    label: 'RHSA-2024:2135'
  - url: 'https://access.redhat.com/security/cve/CVE-2023-3019'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2222351'
    label: RHBZ#2222351
tags:
  - cve.org
epss: 0.00318
epssPercentile: 0.24853
ingestedAt: '2026-11-07T12:16:41.104Z'
---

## Overview

A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service.

## Affected

- `virt-devel:rhel (all versions)`
- `virt:rhel (all versions)`
- `virt-devel:rhel (all versions)`
- `virt:rhel (all versions)`
- `virt-devel:rhel (all versions)`
- `virt:rhel (all versions)`
- `qemu-kvm (all versions)`
- `qemu-kvm`
- `qemu-kvm`
- `qemu-kvm-ma`
- `virt:av/qemu-kvm (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.