CVE-2024-7409

Publication date 5 August 2024

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu 25.04 plucky
Fixed 1:9.0.2+ds-4ubuntu2
24.10 oracular
Fixed 1:9.0.2+ds-4ubuntu2
24.04 LTS noble
Vulnerable
22.04 LTS jammy
Vulnerable
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty
Vulnerable

Notes

mdeslaur

The changes required to fix this issue in Ubuntu 20.04 LTS and earlier are intrusive and uncovered a regression during QA. For Ubuntu 22.04 LTS and Ubuntu 24.04 LTS, the fix for this issue introduces a backwards-incompatible change and may require changes to libvirt to support passing the max-connections parameter.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H