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high7.5Public exploit code

CVE-2017-5637

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 s…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

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.

Affected products

VendorProductAffected versions
ApacheZookeeper
Versions 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 3.4.5
DebianDebian Linux
Version 8.0

Weakness classification

CWE-306CWE-400

References