PT-2021-21138 · Acrn · Acrn

Published 2021-07-02 · Updated 2021-07-08 · CVE-2021-36148

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: ACRN versions prior to 2.5

Description: An issue was discovered in the hypervisor component of ACRN, specifically in the dmar free irte function located in hypervisor/arch/x86/vtd.c. This issue allows an irte alloc bitmap buffer overflow.

Recommendations: For versions prior to 2.5, update to version 2.5 or later to resolve the issue.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-36148

Affected Products

Acrn

References · 5

• https://github.com/projectacrn/acrn-hypervisor/commit/25c0e3817eb332660dd63d1d4522e63dcc94e79a · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-36148 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36148 · Vendor Advisory
• https://t.me/cvenotify/17026 · Telegram Post
• https://t.me/cvenotify/17033 · Telegram Post