CVE-2021-26259 : Exploit Details and Defense Strategies
CVE-2021-26259 is a heap buffer overflow vulnerability in htmldoc v1.9.12. Exploitation could lead to arbitrary code execution or denial of service. Learn about the impact, technical details, and mitigation steps.
A flaw was found in htmldoc in v1.9.12, where a heap buffer overflow in render_table_row(), in ps-pdf.cxx may lead to arbitrary code execution and denial of service.
Understanding CVE-2021-26259
This article provides insights into the CVE-2021-26259 vulnerability in htmldoc v1.9.12.
What is CVE-2021-26259?
CVE-2021-26259 is a heap buffer overflow vulnerability in the render_table_row() function in htmldoc v1.9.12. This flaw can result in arbitrary code execution and denial of service.
The Impact of CVE-2021-26259
Exploitation of this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service on the affected system.
Technical Details of CVE-2021-26259
This section delves into the technical aspects of CVE-2021-26259.
Vulnerability Description
The vulnerability involves a heap buffer overflow in the render_table_row() function in ps-pdf.cxx in htmldoc v1.9.12.
Affected Systems and Versions
The affected product is htmldoc v1.9.12
Exploitation Mechanism
An attacker could exploit this vulnerability to trigger a heap buffer overflow, leading to arbitrary code execution or denial of service.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-26259.
Immediate Steps to Take
Users are advised to update htmldoc to a non-vulnerable version and monitor for any signs of unauthorized access.
Long-Term Security Practices
Implementing secure coding practices and conducting regular security audits can help prevent such vulnerabilities in the future.
Patching and Updates
Stay informed about security patches and updates released by the software vendor to address CVE-2021-26259.