CVE-2021-42996 Explained : Impact and Mitigation

Donglify is affected by an Integer Overflow vulnerability that allows local attackers to execute arbitrary code in kernel mode or cause a denial of service.

Understanding CVE-2021-42996

The vulnerability in Donglify could lead to the execution of malicious code by attackers, posing a risk of memory corruption and operating system crashes.

What is CVE-2021-42996?

Donglify versions above 1.0.12309 and below 1.7.14110 are impacted by an Integer Overflow vulnerability in the IOCTL Handler 0x22001B. Attackers can exploit this to execute arbitrary code or trigger a denial of service through specially crafted I/O Request Packets.

The Impact of CVE-2021-42996

The vulnerability allows local attackers to potentially execute malicious code in kernel mode, leading to memory corruption or causing a denial of service, resulting in operating system crashes.

Technical Details of CVE-2021-42996

The technical aspects of the CVE-2021-42996 vulnerability are as follows:

Vulnerability Description

The Integer Overflow vulnerability in Donglify manifests in the IOCTL Handler 0x22001B, which can be exploited by attackers to execute arbitrary code or disrupt system operations.

Affected Systems and Versions

Product: Donglify
Versions affected: Above 1.0.12309 and below 1.7.14110

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted I/O Request Packets to trigger the Integer Overflow, allowing them to execute arbitrary code in kernel mode or disrupt system functionality.

Mitigation and Prevention

To address CVE-2021-42996, consider the following steps:

Immediate Steps to Take

Implement security patches provided by Donglify promptly.
Monitor and restrict access to the vulnerable system.
Utilize network-level security measures to filter out potentially malicious traffic.

Long-Term Security Practices

Regularly update and patch software to fix vulnerabilities.
Conduct security training for employees to recognize and respond to potential threats.
Employ intrusion detection systems to alert on suspicious activities.
Regularly perform security audits and assessments.

Patching and Updates

Update Donglify to versions that contain patches addressing the Integer Overflow vulnerability to protect systems and prevent exploitation.