CVE-2021-21947 : Vulnerability Insights and Analysis
Accusoft ImageGear 19.10 is affected by CVE-2021-21947, two critical heap-based buffer overflow vulnerabilities. Learn about the impact, technical details, and mitigation steps for this security issue.
Accusoft ImageGear 19.10 is impacted by two heap-based buffer overflow vulnerabilities in the JPEG-JFIF lossless Huffman image parser functionality. An attacker can exploit these vulnerabilities by providing a specially-crafted file, leading to a heap buffer overflow.
Understanding CVE-2021-21947
This section provides insights into the nature and impact of the CVE-2021-21947 vulnerability.
What is CVE-2021-21947?
The CVE-2021-21947 vulnerability involves heap-based buffer overflow issues in Accusoft ImageGear 19.10, triggered by a specially-crafted file that can cause a heap buffer overflow.
The Impact of CVE-2021-21947
The impact of these vulnerabilities is rated as critical with a base CVSS score of 9.8, posing a significant threat to confidentiality, integrity, and availability.
Technical Details of CVE-2021-21947
In this section, we delve into the technical aspects of CVE-2021-21947, including the vulnerability description, affected systems and versions, and exploitation mechanism.
Vulnerability Description
The vulnerabilities arise due to heap-based buffer overflows in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10.
Affected Systems and Versions
Accusoft ImageGear 19.10 is specifically impacted by these vulnerabilities.
Exploitation Mechanism
An attacker can exploit CVE-2021-21947 by providing a malicious file that triggers the heap buffer overflow when the
SOF3Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2021-21947.
Immediate Steps to Take
Users are advised to apply patches provided by Accusoft promptly to remediate the vulnerabilities and prevent potential exploitation.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security assessments, and staying informed about security updates are crucial for long-term security.
Patching and Updates
Regularly update Accusoft ImageGear to the latest version to ensure that known vulnerabilities are patched and secure.