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I. Basic Information for CVE-2021-3716
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通信信道中传输过程中消息完整性的不正确执行
Source: NVD (National Vulnerability Database)
Vulnerability Title
Libguestfs Nbdkit 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libguestfs Nbdkit是Libguestfs社区的一个用于创建NBD(访问网络块设备的协议)服务端的应用软件。 Libguestfs Nbdkit 存在安全漏洞,攻击者可利用该漏洞通过Nbdkit的STARTTLS NBD OPT STRUCTURED REPLY Injection造成致命错误,以触发拒绝服务。
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
-nbdkit Affects nbdkit v1.12 through v1.26.4 | Fixedin nbdkit v1.26.5 -
II. Public POCs for CVE-2021-3716
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III. Intelligence Information for CVE-2021-3716
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IV. Related Vulnerabilities
V. Comments for CVE-2021-3716

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