CVE-2018-16645 : What You Need to Know
Learn about CVE-2018-16645, a vulnerability in ImageMagick 7.0.8-11 allowing remote attackers to trigger a denial of service by exploiting a memory allocation issue. Find mitigation steps here.
ImageMagick 7.0.8-11 has a vulnerability in the functions ReadBMPImage and ReadDIBImage, allowing remote attackers to trigger a denial of service by exploiting a memory allocation issue.
Understanding CVE-2018-16645
This CVE involves a vulnerability in ImageMagick version 7.0.8-11 that can be exploited by attackers to cause a denial of service.
What is CVE-2018-16645?
The functions ReadBMPImage and ReadDIBImage in ImageMagick 7.0.8-11 have a flaw that leads to excessive memory allocation, enabling remote attackers to launch a denial of service attack using a specially crafted image file.
The Impact of CVE-2018-16645
The vulnerability allows attackers to remotely exploit the memory allocation issue, potentially leading to a denial of service condition on the affected system.
Technical Details of CVE-2018-16645
ImageMagick version 7.0.8-11 is susceptible to a memory allocation vulnerability in specific functions.
Vulnerability Description
The vulnerability arises from the functions ReadBMPImage and ReadDIBImage in ImageMagick 7.0.8-11, which improperly allocate memory, creating a security risk.
Affected Systems and Versions
- Product: ImageMagick
- Vendor: N/A
- Versions: 7.0.8-11
Exploitation Mechanism
Attackers can exploit this vulnerability remotely by utilizing a specially crafted image file to trigger the excessive memory allocation, resulting in a denial of service.
Mitigation and Prevention
To address CVE-2018-16645, users should take immediate steps and implement long-term security practices.
Immediate Steps to Take
- Update ImageMagick to a patched version that addresses the memory allocation issue.
- Avoid opening image files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security assessments and audits to identify and mitigate vulnerabilities.
Patching and Updates
Ensure that ImageMagick is regularly updated to the latest version to mitigate the memory allocation vulnerability.