CVE-2017-5637
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I. Basic Information for CVE-2017-5637
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Two four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization on Apache ZooKeeper server if abused, which leads to the server unable to serve legitimate client requests. Apache ZooKeeper thru version 3.4.9 and 3.5.2 suffer from this issue, fixed in 3.4.10, 3.5.3, and later.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Zookeeper 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Zookeeper是美国阿帕奇（Apache）软件基金会的一个软件项目，它能够为大型分布式计算提供开源的分布式配置服务、同步服务和命名注册等功能。 Apache Zookeeper 3.4.9版本和3.5.2版本中存在安全漏洞。攻击者可利用该漏洞造成拒绝服务。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache ZooKeeper | 3.4.0 to 3.4.9 | - |
II. Public POCs for CVE-2017-5637
| # | POC Description | Source Link | Shenlong Link |
|---|
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- 🔗 https://www.oracle.com/security-alerts/cpujul2020.htmlx_refsource_MISC
- 🔗 https://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC
- 🔗 https://issues.apache.org/jira/browse/ZOOKEEPER-2693x_refsource_CONFIRM
- 🔗 [jira] [Created] (AMQ-7279) Security Vulnerabilities in Libraries - jackson-databind-2.9.8.jar, tomcat-servlet-api-8.0.53.jar, tomcat-websocket-api-8.0.53.jar, zookeeper-3.4.6.jar, guava-18.0.jar, jetty-all-9.2.26.v20180806.jar, scala-library-2.11.0.jar-Apache Mail Archives Read full article mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-5637
IV. Related Vulnerabilities
Same product: Apache ZooKeeper
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Apache ZooKeeper: Insufficient Permission Check in AdminServ - CVE-2024-51504
Apache ZooKeeper: Authentication bypass with IP-based authen - CVE-2024-23944
Apache ZooKeeper: Information disclosure in persistent watch
Same vendor: Apache Software Foundation
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Apache CloudStack: Unauthenticated Command Injection in Dire - CVE-2025-69233
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V. Comments for CVE-2017-5637
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