CVE-2021-30471 Explained : Impact and Mitigation
Discover the impact of CVE-2021-30471, a stack overflow vulnerability in PoDoFo 0.9.7. Learn about affected systems, exploitation mechanism, and mitigation steps.
A flaw was found in PoDoFo 0.9.7 where an uncontrolled recursive call in the PdfNamesTree::AddToDictionary function can result in a stack overflow.
Understanding CVE-2021-30471
This section delves into the details of CVE-2021-30471.
What is CVE-2021-30471?
CVE-2021-30471 is a vulnerability in PoDoFo 0.9.7 that allows an uncontrolled recursive call leading to a stack overflow.
The Impact of CVE-2021-30471
The impact of this vulnerability includes the potential for a denial-of-service condition or arbitrary code execution.
Technical Details of CVE-2021-30471
Explore the technical aspects of CVE-2021-30471 here.
Vulnerability Description
The vulnerability arises from an uncontrolled recursive call in the PdfNamesTree::AddToDictionary function of PoDoFo 0.9.7, which leads to a stack overflow.
Affected Systems and Versions
PoDoFo 0.9.7 is confirmed to be affected by this vulnerability.
Exploitation Mechanism
Exploiting this vulnerability involves triggering an uncontrolled recursive call in the PdfNamesTree::AddToDictionary function to cause a stack overflow.
Mitigation and Prevention
Learn about mitigating and preventing CVE-2021-30471 in this section.
Immediate Steps to Take
Users are advised to update PoDoFo to a non-vulnerable version and apply patches provided by the vendor as soon as possible.
Long-Term Security Practices
Implement secure coding practices and conduct regular security audits to prevent similar vulnerabilities in the future.
Patching and Updates
Stay informed about security updates for PoDoFo and apply them promptly to ensure protection against known vulnerabilities.