CVE-2021-36145 : What You Need to Know

A detailed overview of CVE-2021-36145, highlighting the vulnerability in the Device Model of ACRN through version 2.5.

Understanding CVE-2021-36145

A use-after-free vulnerability was identified in the Device Model of ACRN through version 2.5, which could potentially lead to security issues.

What is CVE-2021-36145?

The Device Model in ACRN through version 2.5 is affected by a use-after-free vulnerability in devicemodel/core/mem.c for a freed rb_entry.

The Impact of CVE-2021-36145

This vulnerability could be exploited by attackers to execute arbitrary code or cause a denial of service, posing a risk to system integrity and data confidentiality.

Technical Details of CVE-2021-36145

Explore the technical aspects of the CVE-2021-36145 vulnerability in ACRN.

Vulnerability Description

The use-after-free vulnerability in ACRN's Device Model through version 2.5 allows attackers to tamper with rb_entry, potentially leading to code execution or system disruption.

Affected Systems and Versions

All versions of ACRN up to 2.5 are impacted by CVE-2021-36145, emphasizing the importance of timely updates and patches.

Exploitation Mechanism

Attackers can exploit this vulnerability through crafted input, triggering the use-after-free condition and compromising the system's security.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-36145 and prevent potential security breaches.

Immediate Steps to Take

Users are advised to update ACRN to a patched version above 2.5 and monitor for any unusual behavior that could indicate a security compromise.

Long-Term Security Practices

Implement secure coding practices, conduct regular security audits, and stay informed about the latest vulnerabilities and patches to enhance system security.

Patching and Updates

Regularly check for security updates from ACRN and apply patches promptly to address known vulnerabilities and protect your system from exploitation.