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CVE-2021-22144

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Date: January 5, 2021

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

Language: Java

Severity Score

Severity Score

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Upgrade to version v6.8.17, v7.13.3

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CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT
Attack Complexity (AC): LOW
Privilegs Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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