Buffer Overflow Vulnerability in ACRN Hypervisor from ACRN Project
CVE-2021-36148

7.8HIGH

Key Information:

Vendor

Linux
Status
Acrn
Vendor
CVE Published:
2 July 2021

What is CVE-2021-36148?

A buffer overflow vulnerability was discovered in the ACRN Hypervisor prior to version 2.5. This vulnerability resides in the dmar_free_irte function located in the hypervisor's x86 virtual device translation (vtd) component. An improperly managed irte_alloc_bitmap can lead to potential exploitation, allowing attackers to overwrite memory boundaries. This could result in unexpected behavior or unauthorized access, thus posing a significant security risk to systems utilizing this hypervisor.

References

https://github.com/projectacrn/acrn-hypervisor/commit/25c...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.