CVE-2021-36144 — HIGH (7.5)

Q: What is CVE-2021-36144?

CVE-2021-36144 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

Q: How severe is CVE-2021-36144?

CVE-2021-36144 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-36144?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Acrn.

Vulnerability 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.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Acrn	< 2.5

Related Weaknesses (CWE)

CWE-416

References

https://github.com/projectacrn/acrn-hypervisor/pull/6268/commits/dd88504804e1860PatchThird Party Advisory
https://github.com/projectacrn/acrn-hypervisor/pull/6268/commits/dd88504804e1860PatchThird Party Advisory

FAQ

What is CVE-2021-36144?

CVE-2021-36144 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-2021-36144?

CVE-2021-36144 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-36144?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Acrn.