Buffer overflow in ZooKeeper
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-5017 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
ZooKeeper Server applications / Database software |
| Vendor | Apache Foundation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU40092
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-5017
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsZooKeeper: 3.5.0 - 3.5.2
External linkshttp://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
http://git-wip-us.apache.org/repos/asf?p=zookeeper.git;a=commitdiff;h=27ecf981a15554dc8e64a28630af7a5c9e2bdf4f
http://git-wip-us.apache.org/repos/asf?p=zookeeper.git;a=commitdiff;h=f09154d6648eeb4ec5e1ac8a2bacbd2f8c87c14a
http://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272@%3Cissues.activemq.apache.org%3E
http://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3@%3Ccommits.nifi.apache.org%3E
http://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b@%3Ccommits.nifi.apache.org%3E
http://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html
http://www.oracle.com/security-alerts/cpujul2020.html
http://zookeeper.apache.org/security.html#CVE-2016-5017
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
