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I. Basic Information for CVE-2023-5632
Vulnerability Information

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Vulnerability Title
Unconditionally adding an event to the epoll causes excessive CPU consumption
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
过度迭代
Source: NVD (National Vulnerability Database)
Vulnerability Title
Eclipse Mosquitto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Mosquitto是Eclipse基金会的一套开源的消息代理软件。 Eclipse Mosquitto 2.0.5及之前版本存在安全漏洞,该漏洞源于当建立与mosquitto服务器连接而不发送数据时会导致添加EPOLLOUT事件,从而导致CPU消耗过多,攻击者利用该漏洞可能执行拒绝服务类型的攻击。
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
EclipseMosquitto 0 ~ 2.0.5 -
II. Public POCs for CVE-2023-5632
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III. Intelligence Information for CVE-2023-5632
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IV. Related Vulnerabilities
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