CVE-2017-5637

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.

References

https://www.oracle.com/security-alerts/cpujul2020.html

https://www.oracle.com//security-alerts/cpujul2021.html

https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E

https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E

https://lists.apache.org/thread.html/58170aeb7a681d462b7fa31cae81110cbb749d2dc83c5736a0bb8370%40%3Cdev.zookeeper.apache.org%3E

https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E

https://issues.apache.org/jira/browse/ZOOKEEPER-2693

https://access.redhat.com/errata/RHSA-2017:3355

https://access.redhat.com/errata/RHSA-2017:3354

https://access.redhat.com/errata/RHSA-2017:2477

http://www.securityfocus.com/bid/98814

http://www.debian.org/security/2017/dsa-3871

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3