Learn about CVE-2021-21938, a critical heap-based buffer overflow vulnerability in Accusoft ImageGear 19.10, allowing remote code execution via specially-crafted files. Take immediate steps to secure your systems.
A heap-based buffer overflow vulnerability in Accusoft ImageGear 19.10 allows malicious files to trigger code execution.
Understanding CVE-2021-21938
This CVE involves a critical heap-based buffer overflow vulnerability in Accusoft ImageGear 19.10, impacting the Palette box parser functionality.
What is CVE-2021-21938?
Accusoft ImageGear 19.10 is affected by a heap-based buffer overflow flaw, potentially leading to remote code execution when processing a specially-crafted file.
The Impact of CVE-2021-21938
The vulnerability poses a critical risk as an attacker can exploit it by providing a malicious file, resulting in arbitrary code execution.
Technical Details of CVE-2021-21938
This section discusses the specific details related to the vulnerability.
Vulnerability Description
The vulnerability arises in the Palette box parser functionality of Accusoft ImageGear 19.10 due to an off-by-one error (CWE-193), allowing an attacker to achieve code execution by crafting a malicious file.
Affected Systems and Versions
Accusoft ImageGear 19.10 is the affected version by this critical vulnerability.
Exploitation Mechanism
The vulnerability can be exploited by an attacker supplying a specially-crafted file to the affected system, triggering the heap-based buffer overflow and potentially achieving remote code execution.
Mitigation and Prevention
Protecting systems from CVE-2021-21938 requires immediate action and ongoing security practices.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Accusoft has released updates to address the vulnerability in ImageGear 19.10, and users are advised to apply the latest patches to secure their systems.