CVE-2017-5637
At a glance
- Severity
- Not available
- EPSS
- EPSS 73.06 % · percentile 99 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
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.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
Advisories
- GHSA-7cwj-j333-x7f7 — Uncontrolled Resource Consumption in Apache ZooKeeper
European references
- ENISA EUVD · EUVD-2022-2977
- GCVE · GCVE-0-2017-5637
Affected configurations (NVD CPE)
cpe:2.3:a:apache:zookeeper:3.4.0:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.1:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.2:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.3:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.4:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.5:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.6:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.7:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.8:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.4.9:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.5.0:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.5.1:*:*:*:*:*:*:*cpe:2.3:a:apache:zookeeper:3.5.2:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache ZooKeeper | affected 3.4.0 to 3.4.9 ; affected 3.5.0 to 3.5.2 |
References
- https://lists.apache.org/thread.html/58170aeb7a681d462b7fa31cae81110cbb749d2dc83c5736a0bb8370%40%3Cdev.zookeeper.apache.org%3E
- http://www.securityfocus.com/bid/98814
- 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.debian.org/security/2017/dsa-3871
- https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3E
- https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://issues.apache.org/jira/browse/ZOOKEEPER-2693
- https://www.oracle.com//security-alerts/cpujul2021.html
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |