CVE-2019-12979 : Exploit Details and Defense Strategies
Learn about CVE-2019-12979, a vulnerability in ImageMagick version 7.0.8-34 that allows attackers to execute arbitrary code. Find mitigation steps and prevention measures here.
ImageMagick version 7.0.8-34 is vulnerable to a "use of uninitialized value" issue in the SyncImageSettings function within the image.c file of MagickCore, related to the AcquireImage function in magick/image.c.
Understanding CVE-2019-12979
This CVE entry highlights a specific vulnerability in ImageMagick version 7.0.8-34.
What is CVE-2019-12979?
The vulnerability in ImageMagick version 7.0.8-34 involves the "use of uninitialized value" in the SyncImageSettings function within the image.c file of MagickCore, connected to the AcquireImage function in magick/image.c.
The Impact of CVE-2019-12979
The vulnerability could potentially allow attackers to execute arbitrary code or cause a denial of service by exploiting the uninitialized value issue.
Technical Details of CVE-2019-12979
ImageMagick version 7.0.8-34 is susceptible to a specific vulnerability.
Vulnerability Description
The vulnerability is due to the improper handling of uninitialized values in the SyncImageSettings function within the image.c file of MagickCore, specifically related to the AcquireImage function in magick/image.c.
Affected Systems and Versions
- Product: ImageMagick
- Vendor: N/A
- Version: 7.0.8-34
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the uninitialized value, potentially leading to arbitrary code execution or denial of service.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Update ImageMagick to a patched version that addresses the uninitialized value issue.
- Monitor for any unusual activities on systems running the vulnerable version.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Implement proper input validation and error handling mechanisms in software development.
Patching and Updates
Ensure that ImageMagick is regularly updated to the latest version to mitigate the risk of exploitation.