CVE-2021-44591 Explained : Impact and Mitigation
Learn about CVE-2021-44591, a vulnerability in libming 0.4.8 that allows denial-of-service attacks via crafted SWF files. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
In libming 0.4.8, the parseSWF_DEFINELOSSLESS2 function in util/parser.c lacks a boundary check that would lead to denial-of-service attacks via a crafted SWF file.
Understanding CVE-2021-44591
What is CVE-2021-44591?
CVE-2021-44591 is a vulnerability in libming 0.4.8 that can be exploited by a crafted SWF file to cause denial-of-service attacks.
The Impact of CVE-2021-44591
This vulnerability could result in denial-of-service attacks, potentially disrupting the functionality of systems using libming 0.4.8.
Technical Details of CVE-2021-44591
Vulnerability Description
The parseSWF_DEFINELOSSLESS2 function in util/parser.c lacks a boundary check, enabling attackers to trigger denial-of-service attacks with a malicious SWF file.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Version: n/a
Exploitation Mechanism
The vulnerability can be exploited by crafting a specific SWF file to trigger the lack of boundary checks in the parseSWF_DEFINELOSSLESS2 function.
Mitigation and Prevention
Immediate Steps to Take
- It is recommended to update libming to a patched version that includes the necessary boundary checks.
- Avoid opening untrusted SWF files to mitigate the risk of exploitation.
Long-Term Security Practices
- Regularly update software and libraries to eliminate known vulnerabilities.
- Implement network protections and access controls to reduce the attack surface.
Patching and Updates
Ensure continuous monitoring of security advisories and promptly apply patches provided by the software vendors.