CVE-2017-11522 : Vulnerability Insights and Analysis
Learn about CVE-2017-11522, a vulnerability in ImageMagick that allows denial of service attacks via crafted files. Find out how to mitigate and prevent this issue.
A crafted file can lead to a denial of service in the WriteOnePNGImage function found in coders/png.c in versions 6.9.9-0 through 6.9.9-1, as well as versions 7.x through 7.0.6-1, of ImageMagick.
Understanding CVE-2017-11522
The WriteOnePNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.
What is CVE-2017-11522?
CVE-2017-11522 is a vulnerability in ImageMagick that can be exploited by a crafted file to trigger a denial of service in the WriteOnePNGImage function.
The Impact of CVE-2017-11522
This vulnerability allows remote attackers to cause a denial of service (NULL pointer dereference) by exploiting the WriteOnePNGImage function in ImageMagick.
Technical Details of CVE-2017-11522
Vulnerability Description
The vulnerability exists in the WriteOnePNGImage function in coders/png.c in ImageMagick versions 6.9.9-0 through 6.9.9-1 and versions 7.x through 7.0.6-1.
Affected Systems and Versions
- Versions 6.9.9-0 through 6.9.9-1 of ImageMagick
- Versions 7.x through 7.0.6-1 of ImageMagick
Exploitation Mechanism
The vulnerability can be exploited by a crafted file to trigger a denial of service through a NULL pointer dereference.
Mitigation and Prevention
Immediate Steps to Take
- Apply the necessary patches provided by ImageMagick promptly.
- Consider implementing network security measures to prevent remote exploitation.
Long-Term Security Practices
- Regularly update ImageMagick to the latest version to mitigate known vulnerabilities.
- Conduct security assessments and audits to identify and address potential weaknesses.
Patching and Updates
Ensure that ImageMagick is regularly updated with the latest security patches to protect against known vulnerabilities.