---
id: CVE-2024-3567
title: 'Qemu-kvm: net: assertion failure in update_sctp_checksum()'
summary: >-
  A flaw was found in QEMU. An assertion failure was present in the
  update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to
  calculate the checksum of a short-sized fragmented packet. This flaw allows a
  malicious guest to cras…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-617
vendor: Red Hat
product: net
affected:
  - net 8.2.92
  - qemu-kvm (all versions)
  - qemu-kvm
  - qemu-kvm
  - qemu-kvm-ma
  - 'virt:rhel/qemu-kvm'
  - 'virt:av/qemu-kvm'
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-04-10T19:35:38.865793Z'
exploitAvailable: true
published: '2024-04-10'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T12:18:13.135Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-3567'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:4492'
    label: 'RHSA-2025:4492'
  - url: 'https://access.redhat.com/security/cve/CVE-2024-3567'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2274339'
    label: RHBZ#2274339
  - url: 'https://gitlab.com/qemu-project/qemu/-/issues/2273'
tags:
  - cve.org
  - exploit-available
epss: 0.00445
epssPercentile: 0.38847
ingestedAt: '2026-11-05T21:36:00.836Z'
---

## Overview

A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.

## Affected

- `net 8.2.92`
- `qemu-kvm (all versions)`
- `qemu-kvm`
- `qemu-kvm`
- `qemu-kvm-ma`
- `virt:rhel/qemu-kvm`
- `virt:av/qemu-kvm`

## Remediation

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