CVE-2017-18220 : What You Need to Know

GraphicsMagick 1.3.26's coders/png.c module is vulnerable to a CloseBlob use-after-free flaw, allowing remote attackers to disrupt services or cause other effects by exploiting the ReadOneJNGImage and ReadJNGImage functions.

Understanding CVE-2017-18220

This CVE involves a vulnerability in GraphicsMagick 1.3.26 that can be exploited by remote attackers.

What is CVE-2017-18220?

The vulnerability in the coders/png.c module of GraphicsMagick 1.3.26 allows attackers to disrupt services or cause other effects by manipulating files.

The Impact of CVE-2017-18220

Remote attackers can exploit this vulnerability to disrupt services or cause unspecified effects.
Similar to CVE-2017-11403.

Technical Details of CVE-2017-18220

GraphicsMagick 1.3.26's vulnerability is detailed below:

Vulnerability Description

The ReadOneJNGImage and ReadJNGImage functions in coders/png.c allow remote attackers to exploit a CloseBlob use-after-free vulnerability.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Version: 1.3.26

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing a manipulated file.

Mitigation and Prevention

Steps to address and prevent the CVE-2017-18220 vulnerability:

Immediate Steps to Take

Apply security updates provided by GraphicsMagick promptly.
Monitor official sources for patches and advisories.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement network security measures to detect and block malicious activities.
Conduct regular security audits and assessments.

Patching and Updates

Update GraphicsMagick to the latest version to patch the vulnerability.