CVE-2017-17915 : What You Need to Know
Learn about CVE-2017-17915, a buffer over-read vulnerability in GraphicsMagick version 1.4 snapshot-20171217 Q8, allowing unauthorized access to data before boundary checks. Find mitigation steps here.
GraphicsMagick version 1.4 snapshot-20171217 Q8 has a buffer over-read issue in the ReadMNGImage function in the coders/png.c file, allowing access to one byte before checking limits.
Understanding CVE-2017-17915
This CVE involves a heap-based buffer over-read vulnerability in GraphicsMagick.
What is CVE-2017-17915?
In GraphicsMagick 1.4 snapshot-20171217 Q8, a buffer over-read occurs in the ReadMNGImage function in the coders/png.c file, enabling access to data before verifying limits.
The Impact of CVE-2017-17915
This vulnerability could be exploited by an attacker to read sensitive information from the system's memory, potentially leading to a security breach.
Technical Details of CVE-2017-17915
GraphicsMagick version 1.4 snapshot-20171217 Q8 is susceptible to a buffer over-read vulnerability.
Vulnerability Description
The issue arises in the ReadMNGImage function in the coders/png.c file, allowing unauthorized access to data before boundary checks.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability is exploited by attempting to access data beyond the defined limits, potentially leading to a buffer over-read.
Mitigation and Prevention
To address CVE-2017-17915, follow these steps:
Immediate Steps to Take
- Apply patches provided by GraphicsMagick promptly.
- Monitor vendor advisories for updates and security alerts.
Long-Term Security Practices
- Regularly update GraphicsMagick to the latest version.
- Implement secure coding practices to prevent buffer over-read vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by GraphicsMagick.