CVE-2019-6292 : Vulnerability Insights and Analysis

A vulnerability was identified in singledocparser.cpp in yaml-cpp (also known as LibYaml-C++) 0.6.2, leading to stack exhaustion in YAML::SingleDocParser due to recursive stack frames. This could be exploited by attackers for denial-of-service attacks using a cpp file.

Understanding CVE-2019-6292

This CVE involves a vulnerability in yaml-cpp 0.6.2 that can be leveraged for denial-of-service attacks.

What is CVE-2019-6292?

This CVE refers to a stack exhaustion vulnerability in YAML::SingleDocParser in yaml-cpp (LibYaml-C++) 0.6.2, caused by recursive stack frames.

The Impact of CVE-2019-6292

The vulnerability allows remote attackers to exploit stack exhaustion, potentially leading to denial-of-service attacks using a cpp file.

Technical Details of CVE-2019-6292

This section provides technical details about the vulnerability.

Vulnerability Description

The issue resides in singledocparser.cpp in yaml-cpp 0.6.2, resulting in stack exhaustion in YAML::SingleDocParser due to recursive stack frames like HandleCompactMap, HandleMap, HandleFlowSequence, HandleSequence, and HandleNode.

Affected Systems and Versions

Product: yaml-cpp (LibYaml-C++) 0.6.2
Vendor: N/A
Affected Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the recursive stack frames to cause denial-of-service attacks using a cpp file.

Mitigation and Prevention

Protective measures to address CVE-2019-6292.

Immediate Steps to Take

Monitor for any unusual stack consumption patterns.
Implement stack size limitations to prevent exhaustion.

Long-Term Security Practices

Regularly update yaml-cpp to the latest version.
Conduct security audits to identify and address similar vulnerabilities.

Patching and Updates

Apply patches provided by yaml-cpp to mitigate the vulnerability.