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I. Basic Information for CVE-2021-38691
Vulnerability Information
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Vulnerability Title
Stack Overflow Vulnerability in QVR Elite, QVR Pro and QVR Guard
Source: NVD (National Vulnerability Database)
Vulnerability Description
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
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Qnap Qvr Elite 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qnap Qvr Elite是中国威联通科技（Qnap）公司的一款基于订阅的智能监控解决方案。 QNAP device 存在安全漏洞，该漏洞源于软件中存在基于堆栈的缓冲区溢出漏洞，攻击者可利用该漏洞就可以执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
QNAP Systems Inc.QVR Elite unspecified ~ 2.1.4.0 (2021/12/06) -
QNAP Systems Inc.QVR Elite unspecified ~ 2.1.4.0 (2021/12/06) -
QNAP Systems Inc.QVR Elite unspecified ~ 2.1.4.0 (2021/12/06) -
QNAP Systems Inc.QVR Elite unspecified ~ 2.1.4.0 (2021/12/06) -
QNAP Systems Inc.QVR Pro unspecified ~ 2.1.3.0 (2021/12/06) -
QNAP Systems Inc.QVR Pro unspecified ~ 2.1.3.0 (2021/12/06) -
QNAP Systems Inc.QVR Guard unspecified ~ 2.1.3.0 (2021/12/06) -
QNAP Systems Inc.QVR Guard unspecified ~ 2.1.3.0 (2021/12/06) -
II. Public POCs for CVE-2021-38691
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III. Intelligence Information for CVE-2021-38691
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IV. Related Vulnerabilities
Same product: QVR Elite
Same vendor: QNAP Systems Inc.
Same weakness: CWE-120
V. Comments for CVE-2021-38691

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