CVE-2017-18253 : Security Advisory and Response
Learn about CVE-2017-18253, a vulnerability in ImageMagick 7.0.7 that allows attackers to trigger a denial of service via a crafted file. Find mitigation steps and prevention measures here.
A vulnerability has been found in ImageMagick 7.0.7 where a NULL pointer dereference occurs in the function LoadOpenCLDevices in MagickCore/opencl.c. This vulnerability can be exploited by attackers through a malicious file, leading to a denial of service.
Understanding CVE-2017-18253
This CVE identifies a specific vulnerability in ImageMagick 7.0.7 that can result in a denial of service attack.
What is CVE-2017-18253?
CVE-2017-18253 is a NULL pointer dereference vulnerability in ImageMagick 7.0.7, specifically in the function LoadOpenCLDevices in MagickCore/opencl.c. This flaw can be abused by malicious actors using a crafted file to trigger a denial of service.
The Impact of CVE-2017-18253
The exploitation of this vulnerability can lead to a denial of service condition, potentially disrupting the normal operation of the affected system.
Technical Details of CVE-2017-18253
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in ImageMagick 7.0.7 arises from a NULL pointer dereference in the LoadOpenCLDevices function in MagickCore/opencl.c, enabling attackers to execute a denial of service attack.
Affected Systems and Versions
- Product: ImageMagick 7.0.7
- Vendor: N/A
- Versions: N/A
Exploitation Mechanism
Attackers can exploit this vulnerability by utilizing a malicious file to trigger the NULL pointer dereference, resulting in a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-18253 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches or updates provided by ImageMagick promptly.
- Implement proper input validation mechanisms to prevent malicious file execution.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security assessments and audits to identify and mitigate potential risks.
Patching and Updates
Ensure that ImageMagick is updated to a version that includes a fix for the NULL pointer dereference vulnerability.