CVE-2017-5637
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Zookeeper
PublishedOct 10, 2017
First seenOct 10, 2017
How to fix
Update
- org.apache.zookeeper:zookeeper3.4.10, 3.5.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache zookeeper | 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 3.4.5, 3.4.6, 3.4.7, 3.4.8, 3.4.9, 3.5.0, 3.5.1, 3.5.2 | — |
| debian debian_linux | 8.0 | — |
| org.apache.zookeeper:zookeeperMaven | 3.4.0 ≤ v < 3.4.10, 3.5.0 ≤ v < 3.5.3 | 3.4.10, 3.5.3 |
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