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CVE-2018-8012

Published: 21 May 2018

No authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKeeper before 3.4.10, and 3.5.0-alpha through 3.5.3-beta. As a result an arbitrary end point could join the cluster and begin propagating counterfeit changes to the leader.

From the Ubuntu Security Team

It was discovered that Apache Zookeeper incorrectly handled clusters. An attacker could possibly use this issue to obtain sensitive information.

Notes

AuthorNote
msalvatore
Debian notes that for wheezy (3.4.5) the "changes are too intrusive
to backport"

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
zookeeper
Launchpad, Ubuntu, Debian
disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

impish Not vulnerable

hirsute Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

xenial
Released (3.4.8-1ubuntu0.1~esm1)
Available with Ubuntu Pro
lunar Not vulnerable

artful Not vulnerable
(3.4.10-2)
bionic Not vulnerable

cosmic Not vulnerable

groovy Not vulnerable

upstream
Released (3.4.10-2)
mantic Not vulnerable

trusty Ignored
(backporting risks regressions)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N