CVE-2019-13309 : Exploit Details and Defense Strategies

ImageMagick 7.0.8-50 Q16 has a memory leakage issue due to mishandling the NoSuchImage error in the CLIListOperatorImages function in the operation.c file.

Understanding CVE-2019-13309

This CVE involves a memory leakage vulnerability in ImageMagick version 7.0.8-50 Q16.

What is CVE-2019-13309?

CVE-2019-13309 is a vulnerability in ImageMagick that leads to memory leaks due to improper handling of errors in the CLIListOperatorImages function.

The Impact of CVE-2019-13309

The vulnerability can be exploited by attackers to cause a denial of service (DoS) condition by consuming excessive memory resources.

Technical Details of CVE-2019-13309

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The issue arises from the mishandling of the NoSuchImage error in the CLIListOperatorImages function in the operation.c file of ImageMagick 7.0.8-50 Q16.

Affected Systems and Versions

ImageMagick version 7.0.8-50 Q16 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability to trigger a memory leakage, leading to a DoS condition by repeatedly invoking the vulnerable function.

Mitigation and Prevention

Protecting systems from CVE-2019-13309 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by ImageMagick to address the memory leakage issue.
Monitor system resources for any unusual memory consumption that could indicate an ongoing attack.

Long-Term Security Practices

Regularly update ImageMagick to the latest version to mitigate known vulnerabilities.
Implement proper error handling mechanisms in applications to prevent memory leakage vulnerabilities.

Patching and Updates

ImageMagick has released patches to fix the memory leakage problem in version 7.0.8-50 Q16.