🛡️ CVE-2017-5637 — zookeeper
Description
Uncontrolled Resource Consumption in Apache ZooKeeper
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.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Weakness class
CVE-2017-5637 is classified as CWE-400: Uncontrolled Resource Consumption. A request can consume memory, CPU or storage without limit, exhausting capacity for everyone else.
Affected software
CVE-2017-5637 is recorded against 1 package.
- org.apache.zookeeper:zookeeper (from 3.5.0 up to 3.5.3)
Timeline and source
Published on 13 May 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
nvd.nist.gov (Advisory)
access.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)
issues.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
www.oracle.com (Web)
www.oracle.com (Web)
www.debian.org (Web)
www.securityfocus.com (Web)
Details
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| org.apache.zookeeper:zookeeper | 3.5.0 | 3.5.3 |
References
Similar Threats
- Critical ROOT-APP-MAVEN-CVE-2023-44981
- Medium ROOT-APP-MAVEN-CVE-2024-23944
- Critical ROOT-APP-MAVEN-CVE-2024-51504
- Medium ROOT-APP-MAVEN-CVE-2025-58457
- High ROOT-APP-MAVEN-CVE-2026-24281
More CVE 2017 advisories
Browse all of CVE 2017 in the advisory index.
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