[email protected]CVE-2017-5637

HistoryOct 10, 2017 - 1:30 a.m.

CVE-2017-5637

2017-10-1001:30:22

CWE-306

CWE-400

[email protected]

web.nvd.nist.gov

cve-2017-5637

apache zookeeper

cpu spike

wchp

wchc

nvd

security issue

cpu utilization

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.045 Low

EPSS

Percentile

92.5%

JSON

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 configurations

Vulners

NVD

Node

apachezookeeperRange3.4.0–3.4.9

apachezookeeperRange3.5.0–3.5.2

CPENameOperatorVersion
apache:zookeeperapache zookeepereq3.4.0
apache:zookeeperapache zookeepereq3.4.1
apache:zookeeperapache zookeepereq3.4.2
apache:zookeeperapache zookeepereq3.4.3
apache:zookeeperapache zookeepereq3.4.4
apache:zookeeperapache zookeepereq3.4.5
apache:zookeeperapache zookeepereq3.4.6
apache:zookeeperapache zookeepereq3.4.7
apache:zookeeperapache zookeepereq3.4.8
apache:zookeeperapache zookeepereq3.4.9

CPE	Name	Operator	Version
apache:zookeeper	apache zookeeper	eq	3.4.0
apache:zookeeper	apache zookeeper	eq	3.4.1
apache:zookeeper	apache zookeeper	eq	3.4.2
apache:zookeeper	apache zookeeper	eq	3.4.3
apache:zookeeper	apache zookeeper	eq	3.4.4
apache:zookeeper	apache zookeeper	eq	3.4.5
apache:zookeeper	apache zookeeper	eq	3.4.6
apache:zookeeper	apache zookeeper	eq	3.4.7
apache:zookeeper	apache zookeeper	eq	3.4.8
apache:zookeeper	apache zookeeper	eq	3.4.9

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CNA Affected

[
  {
    "product": "Apache ZooKeeper",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "status": "affected",
        "version": "3.4.0 to 3.4.9"
      },
      {
        "status": "affected",
        "version": "3.5.0 to 3.5.2"
      }
    ]
  }
]