CVE-2018-25198
Buffer Overflow in eToolz 3.4.8.0 Causes Denial of Service
Publication date: 2026-03-06
Last updated on: 2026-03-06
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gaijin | etoolz | to 3.4.8.0 (exc) |
| etoolz | etoolz | 3.4.8.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2018-25198 is a denial of service (DoS) vulnerability in eToolz version 3.4.8.0 and earlier. It occurs when a local attacker supplies an oversized input buffer, specifically a payload file containing 255 bytes of data, which triggers a buffer overflow condition during processing by the application.
This buffer overflow causes the application to crash, resulting in denial of service. The vulnerability is classified under CWE-787 (Out-of-bounds Write).
How can this vulnerability impact me? :
This vulnerability allows a local attacker to crash the eToolz application by supplying a specially crafted input file, causing a denial of service.
The impact is limited to availability, as the application becomes unusable until restarted or fixed, but it does not allow for privilege escalation, code execution, or data compromise.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
[{'type': 'paragraph', 'content': 'This vulnerability can be detected by testing the eToolz application with a specially crafted payload file containing 255 bytes of data, which triggers the buffer overflow and causes the application to crash.'}, {'type': 'paragraph', 'content': "A practical approach is to create a payload file with 255 'A' characters and process it with the vulnerable eToolz version 3.4.8.0 to observe if the application crashes, indicating the presence of the vulnerability."}, {'type': 'paragraph', 'content': 'For example, using the Python script from the proof-of-concept exploit, you can generate the payload file with the following command:'}, {'type': 'list_item', 'content': 'python -c "print(\'A\'*255)" > exp.txt'}, {'type': 'paragraph', 'content': "Then, feed the 'exp.txt' file to the eToolz application and monitor if it crashes or exhibits denial of service behavior."}] [2]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, immediate steps include restricting local access to the eToolz application to trusted users only, as the vulnerability requires local attacker access.
Avoid processing untrusted or suspicious input files that could contain oversized buffers designed to trigger the buffer overflow.
Additionally, monitor the application for crashes or denial of service symptoms and consider applying any available patches or updates from the vendor once released.
If no patch is available, consider running the application with least privilege and in a controlled environment to limit the impact of potential crashes.