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    CVE-2016-5017

    Buffer overflow in the C cli shell in Apache Zookeeper before 3.4.9 and 3.5.x before 3.5.3, when using the "cmd:" batch mode syntax, allows attackers to have unspecified impact via a long command string.

    Published:Sep 16, 2016
    Last Modified:Apr 12, 2025
    EPS:Sep 21, 2016
    EPSS Score:0.06114
    CVSS Score:8.1

    Affected Products

    Vendor
    Apache
    Product
    Zookeeper

    Exploits

    http://packetstormsecurity.com/files/138755/ZooKeeper-3.4.8-3.5.2-Buffer-Overflow.htmlhttp://packetstormsecurity.com/files/138755/ZooKeeper-3.4.8-3.5.2-Buffer-Overflow.html

    Related CVEs

    CVE-2026-24308 (CVSS 7.5) — Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms all…
    CVE-2026-24281 (CVSS 7.4) — Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validatio…
    CVE-2025-58457 (CVSS 4.3) — Improper permission check in ZooKeeper AdminServer lets authorized clients to run snapshot and restore command…
    CVE-2024-51504 (CVSS 9.1) — When using IPAuthenticationProvider in ZooKeeper Admin Server there is a possibility of Authentication Bypass …
    CVE-2024-23944 (CVSS 5.3) — Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows…
    CVE-2023-44981 (CVSS 9.1) — Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authen…
    CVE-2021-21295 (CVSS 5.9) — Netty is an open-source, asynchronous event-driven network application framework for rapid development of main…
    CVE-2019-0201 (CVSS 5.9) — An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() co…
    CVE-2018-8012 (CVSS 7.5) — No authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKeeper before…
    CVE-2017-5637 (CVSS 7.5) — Two four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization on Apache…

    References

    http://packetstormsecurity.com/files/138755/ZooKeeper-3.4.8-3.5.2-Buffer-Overflow.html
    http://www.openwall.com/lists/oss-security/2016/09/17/3
    http://www.securityfocus.com/bid/93044
    https://git-wip-us.apache.org/repos/asf?p=zookeeper.git%3Ba=commitdiff%3Bh=27ecf981a15554dc8e64a28630af7a5c9e2bdf4f
    https://git-wip-us.apache.org/repos/asf?p=zookeeper.git%3Ba=commitdiff%3Bh=f09154d6648eeb4ec5e1ac8a2bacbd2f8c87c14a
    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/r4b743f407244294f316325458ccaabfce9cd70ca3a6423dbe574035c%40%3Cnotifications.dubbo.apache.org%3E
    https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E
    https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html
    https://www.oracle.com/security-alerts/cpujul2020.html
    https://zookeeper.apache.org/security.html#CVE-2016-5017
    http://packetstormsecurity.com/files/138755/ZooKeeper-3.4.8-3.5.2-Buffer-Overflow.html
    http://www.openwall.com/lists/oss-security/2016/09/17/3
    http://www.securityfocus.com/bid/93044
    https://git-wip-us.apache.org/repos/asf?p=zookeeper.git%3Ba=commitdiff%3Bh=27ecf981a15554dc8e64a28630af7a5c9e2bdf4f
    https://git-wip-us.apache.org/repos/asf?p=zookeeper.git%3Ba=commitdiff%3Bh=f09154d6648eeb4ec5e1ac8a2bacbd2f8c87c14a
    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/r4b743f407244294f316325458ccaabfce9cd70ca3a6423dbe574035c%40%3Cnotifications.dubbo.apache.org%3E
    https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E
    https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html
    https://www.oracle.com/security-alerts/cpujul2020.html
    https://zookeeper.apache.org/security.html#CVE-2016-5017

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High