CVE-2021-36144

Published: Jul 2, 2021Modified: Nov 21, 2024

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to devicemodel/hw/pci/virtio/*.c.

Affected (1)

Products: Linux: Acrn

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Acrn	Before 2.5

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://github.com/projectacrn/acrn-hypervisor/pull/6268/commits/dd88504804e186029f845a166dc5c31695e2cca2

Source: cve@mitre.org

PatchThird Party Advisory

https://github.com/projectacrn/acrn-hypervisor/pull/6268/commits/dd88504804e186029f845a166dc5c31695e2cca2

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

Timeline

No history available yet.