// For flags

CVE-2024-8354

Qemu-kvm: usb: assertion failure in usb_ep_get()

Severity Score

4.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest user to crash the QEMU process on the host and cause a denial of service condition.

Se encontró una falla en QEMU. Se produjo un error de aserción en la función usb_ep_get() en hw/net/core.c al intentar obtener el endpoint USB de un dispositivo USB. Esta falla puede permitir que un usuario invitado malintencionado y sin privilegios bloquee el proceso QEMU en el host y provoque una condición de denegación de servicio.

This update for qemu fixes the following issues. Fixed denial of service via improper synchronization in QEMU NBD Server during socket closure. Fixed assertion failure in usb_ep_get in usb. Fixed information leak in virtio devices.

*Credits: Red Hat would like to thank Antoine "Gravis" Assier de Pompignan (Fuzzinglabs) and Patrick Ventuzelo (Fuzzinglabs) for reporting this issue.
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-08-30 CVE Reserved
  • 2024-09-19 CVE Published
  • 2025-05-21 CVE Updated
  • 2025-07-21 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-617: Reachable Assertion
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Qemu
Search vendor "Qemu"
 Qemu
Search vendor "Qemu" for product "Qemu"
*-
Affected
Red Hat
Search vendor "Red Hat"
 Enterprise Linux
Search vendor "Red Hat" for product "Enterprise Linux"
*-
Affected
Redhat
Search vendor "Redhat"
 Advanced Virtualization
Search vendor "Redhat" for product "Advanced Virtualization"
*-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
*-
Affected