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CVE-2021-22144

Published: 26 July 2021

In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
elasticsearch
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Does not exist

noble Does not exist

upstream Needs triage

xenial Needs triage

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H