CVE-2019-13304 : Exploit Details and Defense Strategies
Learn about CVE-2019-13304, a stack-based buffer overflow vulnerability in ImageMagick version 7.0.8-50 Q16. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A stack-based buffer overflow vulnerability was discovered in ImageMagick version 7.0.8-50 Q16. This vulnerability occurs in the code section responsible for writing PNM images (coders/pnm.c) due to an incorrectly placed assignment.
Understanding CVE-2019-13304
What is CVE-2019-13304?
ImageMagick 7.0.8-50 Q16 has a stack-based buffer overflow at coders/pnm.c in WritePNMImage because of a misplaced assignment.
The Impact of CVE-2019-13304
This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by crashing the application.
Technical Details of CVE-2019-13304
Vulnerability Description
A stack-based buffer overflow vulnerability in ImageMagick version 7.0.8-50 Q16 due to an incorrectly placed assignment in the code section responsible for writing PNM images.
Affected Systems and Versions
- Product: ImageMagick
- Vendor: N/A
- Version: 7.0.8-50 Q16
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious PNM image file and tricking a user or system into processing it.
Mitigation and Prevention
Immediate Steps to Take
- Update ImageMagick to a non-vulnerable version.
- Avoid processing untrusted PNM image files.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement proper input validation and sanitization mechanisms.
Patching and Updates
Ensure that ImageMagick is regularly updated to the latest version to mitigate the risk of exploitation.