CVE-2017-8345 : What You Need to Know

A vulnerability has been identified in ImageMagick version 7.0.5-5, specifically in the ReadMNGImage function within the png.c file. This vulnerability can be exploited by attackers to trigger a denial of service, resulting in a memory leak. The exploit involves the use of a specially crafted file.

Understanding CVE-2017-8345

This CVE entry pertains to a specific vulnerability in ImageMagick version 7.0.5-5 that can lead to a denial of service attack.

What is CVE-2017-8345?

CVE-2017-8345 is a vulnerability found in the ReadMNGImage function in the png.c file of ImageMagick version 7.0.5-5. Attackers can exploit this flaw to cause a denial of service by inducing a memory leak through a specially crafted file.

The Impact of CVE-2017-8345

The vulnerability in ImageMagick version 7.0.5-5 can have the following impacts:

Denial of service attack
Memory leak due to exploitation

Technical Details of CVE-2017-8345

This section provides more technical insights into the CVE-2017-8345 vulnerability.

Vulnerability Description

The ReadMNGImage function in png.c of ImageMagick 7.0.5-5 allows attackers to execute a denial of service attack resulting in a memory leak by using a malicious file.

Affected Systems and Versions

Affected Version: ImageMagick 7.0.5-5
Systems running ImageMagick version 7.0.5-5 are vulnerable to this exploit.

Exploitation Mechanism

The vulnerability can be exploited by attackers through the following method:

Crafting a malicious file to trigger the ReadMNGImage function in png.c and induce a denial of service attack.

Mitigation and Prevention

Protecting systems from CVE-2017-8345 requires immediate actions and long-term security practices.

Immediate Steps to Take

To mitigate the risks associated with CVE-2017-8345, consider the following:

Update ImageMagick to a patched version that addresses the vulnerability.
Implement file upload restrictions to prevent the upload of potentially harmful files.

Long-Term Security Practices

For enhanced security posture, adopt the following practices:

Regularly monitor and update software to patch known vulnerabilities.
Conduct security assessments and audits to identify and remediate potential weaknesses.

Patching and Updates

Ensure the following steps are taken to address CVE-2017-8345:

Apply the latest patches provided by ImageMagick to fix the vulnerability.
Stay informed about security advisories and updates from ImageMagick to protect against similar vulnerabilities.