CVE-2021-21942 : Vulnerability Insights and Analysis
Learn about CVE-2021-21942, a critical out-of-bounds write vulnerability in Accusoft ImageGear 19.10 that can lead to remote code execution. Find out the impact, technical details, and mitigation steps.
Accusoft ImageGear 19.10 is affected by an out-of-bounds write vulnerability in the TIFF YCbCr image parser functionality. This vulnerability can be exploited through a specially-crafted file to achieve remote code execution.
Understanding CVE-2021-21942
This section will provide insights into the nature of the vulnerability and its potential impact.
What is CVE-2021-21942?
The CVE-2021-21942 vulnerability is a critical out-of-bounds write flaw in Accusoft ImageGear 19.10. By exploiting this vulnerability, an attacker can execute arbitrary code remotely by providing a malicious file.
The Impact of CVE-2021-21942
With a CVSS base score of 9.8, this critical vulnerability poses a high risk to confidentiality, integrity, and availability. The attack complexity is low, but the impact of successful exploitation is severe.
Technical Details of CVE-2021-21942
Let's delve into the technical aspects of the CVE-2021-21942 vulnerability.
Vulnerability Description
The vulnerability arises from improper handling of input data in the TIFF YCbCr image parser of ImageGear 19.10, leading to an out-of-bounds write condition.
Affected Systems and Versions
Accusoft ImageGear 19.10 is the affected version by this critical vulnerability.
Exploitation Mechanism
Exploitation of CVE-2021-21942 involves providing a specifically crafted file to trigger the out-of-bounds write vulnerability.
Mitigation and Prevention
Discover the steps to mitigate and prevent exploitation of CVE-2021-21942.
Immediate Steps to Take
It is crucial to apply security patches provided by Accusoft promptly. Additionally, exercise caution with untrusted files to mitigate the risk of exploitation.
Long-Term Security Practices
Implement robust security measures such as network segmentation, regular security audits, and employee cybersecurity training to enhance overall resilience.
Patching and Updates
Regularly check for security updates from Accusoft and apply them as soon as they are available to ensure protection against known vulnerabilities.