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Debian DSA-3871-1 : zookeeper - security update

high Nessus Plugin ID 100579

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Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that Zookeeper, a service for maintaining configuration information, didn't restrict access to the computationally expensive wchp/wchc commands which could result in denial of service by elevated CPU consumption.

This update disables those two commands by default. The new configuration option '4lw.commands.whitelist' can be used to whitelist commands selectively (and the full set of commands can be restored with '*')

Solution

Upgrade the zookeeper packages.

For the stable distribution (jessie), this problem has been fixed in version 3.4.5+dfsg-2+deb8u2.

See Also

https://packages.debian.org/source/jessie/zookeeper

https://www.debian.org/security/2017/dsa-3871

Plugin Details

Severity: High

ID: 100579

File Name: debian_DSA-3871.nasl

Version: 3.10

Type: local

Agent: unix

Published: 6/2/2017

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:zookeeper, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/1/2017

Reference Information

CVE: CVE-2017-5637

DSA: 3871