CVE-2017-10687 : Vulnerability Insights and Analysis

LibSass version 3.4.5 is susceptible to a remote denial of service attack due to a heap-based buffer over-read in the json_mkstream() function within the sass_context.cpp file. This vulnerability allows exploitation through manipulated input.

Understanding CVE-2017-10687

This CVE details a specific vulnerability in LibSass version 3.4.5.

What is CVE-2017-10687?

CVE-2017-10687 is a heap-based buffer over-read vulnerability in LibSass version 3.4.5, allowing for a remote denial of service attack.

The Impact of CVE-2017-10687

The vulnerability can be exploited by an attacker to trigger a denial of service condition on systems running the affected version of LibSass.

Technical Details of CVE-2017-10687

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue lies in the json_mkstream() function within the sass_context.cpp file, enabling the heap-based buffer over-read.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 3.4.5 (affected)

Exploitation Mechanism

The vulnerability can be exploited by crafting specific input to trigger the heap-based buffer over-read, leading to a denial of service attack.

Mitigation and Prevention

Protective measures to address the CVE-2017-10687 vulnerability.

Immediate Steps to Take

Update LibSass to a patched version that addresses the heap-based buffer over-read.
Implement input validation mechanisms to prevent manipulated input from triggering the vulnerability.

Long-Term Security Practices

Regularly monitor security advisories for LibSass and apply updates promptly.
Conduct security assessments to identify and mitigate similar vulnerabilities in the codebase.

Patching and Updates

Ensure timely patching and updates for LibSass to mitigate the CVE-2017-10687 vulnerability.