CVE-2021-38690: Stack Overflow Vulnerability in QVR Elite, QVR Pro and QVR Guard
First published: Fri Jan 14 2022(Updated: )
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
Credit: security@qnapsecurity.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Qnap Qvr Elite | <2.1.4.0 | |
| Qnap Qvr Guard | <2.1.3.0 | |
| Qnap Qvr Pro | <2.1.3.0 |
Remedy
We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-38690?
The severity of CVE-2021-38690 is critical with a severity value of 9.8.
Which QNAP devices are affected by CVE-2021-38690?
The QNAP devices affected by CVE-2021-38690 are QVR Elite, QVR Pro, and QVR Guard.
What is the impact of CVE-2021-38690?
CVE-2021-38690 allows attackers to execute arbitrary code.
How do I fix the vulnerability described in CVE-2021-38690?
The vulnerability described in CVE-2021-38690 has been fixed in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS ...
Where can I find more information about CVE-2021-38690?
You can find more information about CVE-2021-38690 in the QNAP Security Advisory QSA-21-59.
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