CVE-2024-42134

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42134
In the Linux kernel, the following vulnerability has been resolved: virtio-pci: Check if is_avq is NULL [bug] In the virtio_pci_common.c function vp_del_vqs, vp_dev->is_avq is involved to determine whether it is admin virtqueue, but this function vp_dev->is_avq may be empty. For installations, virtio_pci_legacy does not assign a value to vp_dev->is_avq. [fix] Check whether it is vp_dev->is_avq before use. [test] Test with virsh Attach device Before this patch, the following command would crash the guest system After applying the patch, everything seems to be working fine.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 Patch
https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 Patch
https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 Patch
https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 Patch
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

11 Dec 2024, 17:19

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 - () https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 - Patch
References () https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 - () https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 - Patch
First Time Linux linux Kernel
Linux
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

21 Nov 2024, 09:33

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 - () https://git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 -
References () https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 - () https://git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 -

30 Jul 2024, 13:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: virtio-pci: compruebe si is_avq es NULL [error] En la función virtio_pci_common.c vp_del_vqs, vp_dev->is_avq participa para determinar si es admin virtqueue, pero esta función vp_dev ->is_avq puede estar vacío. Para instalaciones, virtio_pci_legacy no asigna un valor a vp_dev->is_avq. [arreglo] Verifique si es vp_dev->is_avq antes de usarlo. [prueba] Prueba con virsh Adjuntar dispositivo Antes de este parche, el siguiente comando bloquearía el sistema invitado. Después de aplicar el parche, todo parece estar funcionando bien.

30 Jul 2024, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-30 08:15

Updated : 2024-12-11 17:19

NVD link : CVE-2024-42134

Mitre link : CVE-2024-42134

CVE.ORG link : CVE-2024-42134

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference