CVE-2017-11638 : Security Advisory and Response
Learn about CVE-2017-11638, a segmentation violation vulnerability in GraphicsMagick 1.3.26 affecting non-colormapped images. Find out the impact, technical details, and mitigation steps.
GraphicsMagick 1.3.26 has a segmentation violation vulnerability in the WriteMAPImage() function, affecting non-colormapped images.
Understanding CVE-2017-11638
This CVE involves a specific vulnerability in GraphicsMagick 1.3.26 that impacts non-colormapped images.
What is CVE-2017-11638?
The vulnerability occurs in the coders/map.c file's WriteMAPImage() function within GraphicsMagick 1.3.26. It is distinct from the CVE-2017-11642 vulnerability.
The Impact of CVE-2017-11638
The vulnerability allows attackers to trigger a segmentation violation when processing non-colormapped images, potentially leading to a denial of service or arbitrary code execution.
Technical Details of CVE-2017-11638
This section covers the technical aspects of the CVE.
Vulnerability Description
The vulnerability in GraphicsMagick 1.3.26 arises in the WriteMAPImage() function within the coders/map.c file, affecting non-colormapped images.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating non-colormapped images to trigger a segmentation violation, potentially leading to malicious activities.
Mitigation and Prevention
Protecting systems from CVE-2017-11638 is crucial to maintaining security.
Immediate Steps to Take
- Apply patches or updates provided by the vendor promptly.
- Implement network security measures to detect and block potential exploitation attempts.
- Monitor system logs for any suspicious activities related to image processing.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and mitigate potential risks.
- Educate users and administrators about safe image handling practices.
Patching and Updates
- Stay informed about security advisories and updates from GraphicsMagick and relevant vendors.
- Apply patches or upgrades as soon as they are available to mitigate the vulnerability effectively.