CVE-2021-28816: Stack Buffer Overflow Vulnerabilities in QTS, QuTS hero, and QuTScloud
First published: Fri Sep 10 2021(Updated: )
A stack buffer overflow vulnerability has been reported to affect QNAP device running QTS, QuTScloud, QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QTS, QuTScloud, QuTS hero: QTS 4.5.4.1715 build 20210630 and later QTS 5.0.0.1716 build 20210701 and later QTS 4.3.3.1693 build 20210624 and later QTS 4.3.6.1750 build 20210730 and later QuTScloud c4.5.6.1755 and later QuTS hero h4.5.4.1771 build 20210825 and later
Credit: security@qnapsecurity.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QNAP QTS | <4.3.3.1693 | |
| QNAP QTS | >=4.3.4<4.3.6.1750 | |
| QNAP QTS | >=4.4.0<4.5.4.1715 | |
| QNAP QTS | >=5.0.0<5.0.0.1716 | |
| QNAP QuTS hero | <h4.5.4.1771 | |
| QNAP QuTScloud | <c4.5.6.1755 |
Remedy
We have already fixed this vulnerability in the following versions of QTS, QuTScloud, QuTS hero: QTS 4.5.4.1715 build 20210630 and later QTS 5.0.0.1716 build 20210701 and later QTS 4.3.3.1693 build 20210624 and later QTS 4.3.6.1750 build 20210730 and later QuTScloud c4.5.6.1755 and later QuTS hero h4.5.4.1771 build 20210825 and later
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Reference Links
Frequently Asked Questions
What is CVE-2021-28816?
CVE-2021-28816 is a stack buffer overflow vulnerability that affects QNAP devices running QTS, QuTScloud, and QuTS hero.
What is the severity of CVE-2021-28816?
The severity of CVE-2021-28816 is high with a CVSS score of 8.8.
Which software versions are affected by CVE-2021-28816?
QNAP devices running QTS versions up to and including 4.3.3.1693, 4.3.4 to 4.3.6.1750, 4.4.0 to 4.5.4.1715, and 5.0.0 to 5.0.0.1716 are affected. QNAP devices running QuTS hero up to h4.5.4.1771 and QuTScloud up to c4.5.6.1755 are also affected.
How does CVE-2021-28816 impact the affected devices?
If exploited, CVE-2021-28816 allows attackers to execute arbitrary code on the affected QNAP devices.
How can I fix CVE-2021-28816?
To fix CVE-2021-28816, update your QNAP device to the following versions of QTS, QuTScloud, or QuTS hero: QTS 4.5.4.1715 or later, QuTS hero h4.5.4.1771 or later, or QuTScloud c4.5.6.1755 or later.
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- collector/nvd-index
- agent/software-canonical-lookup-request
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- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/title
- agent/severity
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- agent/tags
- agent/first-publish-date
- agent/event
- vendor/qnap
- canonical/qnap qts
- version/qnap qts/4.3.4
- version/qnap qts/4.4.0
- version/qnap qts/5.0.0
- canonical/qnap quts hero
- canonical/qnap qutscloud