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HistoryMay 13, 2022 - 1:08 a.m.

Uncontrolled Resource Consumption in Apache ZooKeeper

2022-05-1301:08:23
Google
osv.dev
9
apache zookeeper
resource consumption
cpu spike
server issue
software vulnerability

EPSS

0.045

Percentile

92.5%

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.

References