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.
CVSS Details
- CVSS 3.0 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade zookeeper | Jun 3, 2017 | Jun 1, 2017 |
| Freebsd | — | Upgrade zookeeper | Oct 10, 2017 | Oct 10, 2017 |
| Ubuntu | — | Upgrade libzookeeper-st2 (Ubuntu Pro)Upgrade zookeeperd (Ubuntu Pro)Upgrade libzookeeper-java (Ubuntu Pro)Upgrade libzookeeper-mt2 (Ubuntu Pro)Upgrade libzookeeper2 (Ubuntu Pro)Upgrade zookeeper (Ubuntu Pro)Upgrade python-zookeeper (Ubuntu Pro)Upgrade zookeeper-bin (Ubuntu Pro) | Mar 22, 2023 | Oct 10, 2017 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Oct 10, 2017 |
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