CVE-2017-11096 Explained : Impact and Mitigation
Learn about CVE-2017-11096, a vulnerability in SWFTools 0.9.2 that can lead to a NULL Pointer Dereference in the swf_DeleteFilter() function. Find out the impact, affected systems, exploitation, and mitigation steps.
SWFTools 0.9.2 is susceptible to a NULL Pointer Dereference vulnerability when processing manipulated files with swfcombine. This vulnerability occurs within the swf_DeleteFilter() function in lib/modules/swffilter.c.
Understanding CVE-2017-11096
In this section, we will delve into the details of the CVE-2017-11096 vulnerability.
What is CVE-2017-11096?
CVE-2017-11096 is a vulnerability in SWFTools 0.9.2 that can be exploited through a crafted file in the swfcombine process, leading to a NULL Pointer Dereference in the swf_DeleteFilter() function.
The Impact of CVE-2017-11096
The vulnerability can result in a denial of service (DoS) condition or potentially allow an attacker to execute arbitrary code on the affected system.
Technical Details of CVE-2017-11096
Let's explore the technical aspects of CVE-2017-11096.
Vulnerability Description
The vulnerability arises due to improper handling of manipulated files in the swfcombine process, leading to a NULL Pointer Dereference in the swf_DeleteFilter() function.
Affected Systems and Versions
- Affected Version: SWFTools 0.9.2
- Other versions may also be impacted if they utilize the vulnerable swfcombine process.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a malicious file and tricking a user into processing it with swfcombine, triggering the NULL Pointer Dereference.
Mitigation and Prevention
Protecting systems from CVE-2017-11096 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Avoid processing untrusted or manipulated SWF files with SWFTools 0.9.2 swfcombine.
- Consider using alternative tools or updated versions that address the vulnerability.
Long-Term Security Practices
- Regularly update software and apply patches to mitigate known vulnerabilities.
- Implement proper input validation and secure coding practices to prevent exploitation of similar vulnerabilities.
Patching and Updates
- Check for patches or updates provided by SWFTools to fix the NULL Pointer Dereference vulnerability in swfcombine.