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Resource Exhaustion Affecting zookeeper package, versions <3.4.5+dfsg-1ubuntu0.1~esm1

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
6.5% (94th percentile)

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  • Snyk IDSNYK-UBUNTU1404-ZOOKEEPER-286512
  • published10 Oct 2017
  • disclosed10 Oct 2017
Report a new vulnerability Found a mistake?

Introduced: 10 Oct 2017

CVE-2017-5637  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 zookeeper to version 3.4.5+dfsg-1ubuntu0.1~esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zookeeper package and not the zookeeper package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

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