CVE-2017-12693 : Security Advisory and Response
Learn about CVE-2017-12693, a vulnerability in ImageMagick 7.0.6-6 that allows remote attackers to trigger a denial of service attack via a crafted BMP file. Find mitigation steps and preventive measures here.
A crafted BMP file can be used by remote attackers to cause a denial of service (memory consumption) in the ImageMagick software through the exploitation of the ReadBMPImage function within the coders/bmp.c file of ImageMagick 7.0.6-6.
Understanding CVE-2017-12693
This CVE involves a vulnerability in ImageMagick that allows remote attackers to trigger a denial of service attack by using a specially crafted BMP file.
What is CVE-2017-12693?
The ReadBMPImage function in coders/bmp.c in ImageMagick 7.0.6-6 enables remote attackers to induce a denial of service (memory consumption) by exploiting a manipulated BMP file.
The Impact of CVE-2017-12693
The vulnerability can lead to a denial of service condition in ImageMagick, potentially affecting the availability and performance of the software.
Technical Details of CVE-2017-12693
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The ReadBMPImage function in coders/bmp.c in ImageMagick 7.0.6-6 allows remote attackers to cause a denial of service (memory consumption) via a crafted BMP file.
Affected Systems and Versions
- Product: ImageMagick
- Vendor: N/A
- Version: 7.0.6-6
Exploitation Mechanism
The exploitation of this vulnerability occurs through the manipulation of a specially crafted BMP file, triggering excessive memory consumption and leading to a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-12693 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by ImageMagick promptly.
- Implement network security measures to prevent unauthorized access to vulnerable systems.
- Monitor system resources for any unusual spikes in memory consumption.
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 computing practices and the importance of software security.
Patching and Updates
Ensure that the affected ImageMagick software is updated to a secure version that addresses the vulnerability.