CVE-2017-11572 : Vulnerability Insights and Analysis

FontForge version 20161012 is susceptible to a heap-based buffer over-read vulnerability in the readcfftopdicts function, potentially leading to denial of service (DoS) or arbitrary code execution via a specially crafted otf file.

Understanding CVE-2017-11572

FontForge 20161012 contains a security flaw that can be exploited by attackers to trigger a heap-based buffer over-read in the parsettf.c file, allowing for potential DoS attacks or execution of arbitrary code.

What is CVE-2017-11572?

The vulnerability in FontForge version 20161012 enables malicious actors to exploit a heap-based buffer over-read in the readcfftopdicts function, located in the parsettf.c file. By providing a specifically crafted otf file, attackers can potentially execute arbitrary code or cause a denial of service.

The Impact of CVE-2017-11572

This vulnerability may result in a denial of service (DoS) condition or allow threat actors to execute arbitrary code on the affected system, posing a significant risk to the security and stability of the software.

Technical Details of CVE-2017-11572

FontForge version 20161012 is vulnerable to a heap-based buffer over-read in the readcfftopdicts function within the parsettf.c file, potentially leading to DoS or code execution through a malicious otf file.

Vulnerability Description

The readcfftopdicts function in FontForge version 20161012 has a security flaw that can result in a heap-based buffer over-read in the parsettf.c file, allowing attackers to exploit the vulnerability for DoS attacks or arbitrary code execution.

Affected Systems and Versions

Product: FontForge
Vendor: N/A
Version: 20161012

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specially crafted otf file to trigger a heap-based buffer over-read in the readcfftopdicts function, potentially leading to a denial of service (DoS) or execution of arbitrary code.

Mitigation and Prevention

FontForge users should take immediate steps to mitigate the risks associated with CVE-2017-11572 and implement long-term security practices to enhance overall system security.

Immediate Steps to Take

Update FontForge to a patched version that addresses the vulnerability.
Avoid opening or processing untrusted otf files.
Monitor vendor security advisories for updates and patches.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and audits to identify and remediate vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by FontForge to address the heap-based buffer over-read vulnerability in version 20161012.