CVE-2019-7154 : Exploit Details and Defense Strategies
Learn about CVE-2019-7154, a heap-based buffer overflow vulnerability in Binaryen version 1.38.22 due to Emscripten misuse, potentially leading to denial-of-service attacks. Find mitigation steps and prevention measures.
Binaryen version 1.38.22 is affected by a heap-based buffer overflow vulnerability in the primary function located in tools/wasm2js.cpp. This vulnerability is triggered by the misuse of Emscripten, leading to errors in the printAst() function of emscripten-optimizer/simple_ast.h. An attacker can exploit this issue by providing specially crafted input, potentially causing denial-of-service scenarios.
Understanding CVE-2019-7154
This CVE involves a heap-based buffer overflow vulnerability in Binaryen version 1.38.22 due to the misuse of Emscripten.
What is CVE-2019-7154?
The vulnerability in Binaryen version 1.38.22 allows for a heap-based buffer overflow when Emscripten is misused, leading to potential denial-of-service attacks.
The Impact of CVE-2019-7154
Exploitation of this vulnerability can result in segmentation faults and denial-of-service scenarios, affecting the availability of the system.
Technical Details of CVE-2019-7154
Binaryen version 1.38.22 is susceptible to a heap-based buffer overflow vulnerability due to the misuse of Emscripten.
Vulnerability Description
The vulnerability is located in the primary function of tools/wasm2js.cpp in Binaryen version 1.38.22, triggered by the misuse of Emscripten, leading to errors in the printAst() function of emscripten-optimizer/simple_ast.h.
Affected Systems and Versions
- Product: Binaryen version 1.38.22
- Vendor: N/A
- Versions: N/A
Exploitation Mechanism
- Attackers can exploit this vulnerability by providing specially crafted input, potentially causing segmentation faults and denial-of-service scenarios.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-7154.
Immediate Steps to Take
- Update Binaryen to a patched version that addresses the heap-based buffer overflow vulnerability.
- Implement input validation mechanisms to prevent the execution of malicious code.
Long-Term Security Practices
- Regularly monitor and update software components to mitigate potential vulnerabilities.
- Conduct security assessments and code reviews to identify and address similar issues.
Patching and Updates
- Apply patches and updates provided by Binaryen to fix the vulnerability and enhance system security.