CVE-2021-39556 Explained : Impact and Mitigation
Discover the details of CVE-2021-39556, a vulnerability in swftools through 20200710 that allows attackers to cause Denial of Service. Learn about impact, mitigation, and prevention strategies.
This CVE-2021-39556 article provides details regarding a vulnerability discovered in swftools through 20200710 that could lead to a Denial of Service attack.
Understanding CVE-2021-39556
This section delves into the specifics of CVE-2021-39556.
What is CVE-2021-39556?
An issue was found in swftools through 20200710, where a NULL pointer dereference in InfoOutputDev::type3D1() in InfoOutputDev.cc can be exploited by an attacker to trigger a Denial of Service attack.
The Impact of CVE-2021-39556
The vulnerability allows an attacker to cause a Denial of Service, potentially disrupting the availability of the affected service or system.
Technical Details of CVE-2021-39556
Exploring the technical aspects of CVE-2021-39556.
Vulnerability Description
A NULL pointer dereference exists in the function InfoOutputDev::type3D1() in InfoOutputDev.cc of swftools through 20200710.
Affected Systems and Versions
- Affected Product: n/a
- Affected Vendor: n/a
- Affected Version: n/a
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a Denial of Service condition.
Mitigation and Prevention
Understanding how to mitigate the risks posed by CVE-2021-39556.
Immediate Steps to Take
- Consider implementing code changes to address the NULL pointer dereference issue.
- Monitor security channels for updates and patches.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Stay informed about security best practices and emerging threats.
Patching and Updates
Ensure to apply patches and updates provided by the software vendor to mitigate the CVE-2021-39556 vulnerability.