What is CVE-2021-22145?

CVE-2021-22145 is a memory disclosure vulnerability in Elasticsearch 7.10.0 to 7.13.3 error reporting that allows a user to access previously used portions of a data buffer through a malformed query.

Which versions of Elasticsearch are affected by CVE-2021-22145?

Elasticsearch versions 7.10.0 to 7.13.3 are affected by CVE-2021-22145.

What is the severity of CVE-2021-22145?

CVE-2021-22145 has a severity rating of 6.5 (medium).

How can an attacker exploit CVE-2021-22145?

An attacker can exploit CVE-2021-22145 by submitting a malformed query to Elasticsearch that triggers an error message containing previously used data.

Are there any known fixes or patches for CVE-2021-22145?

Yes, Elastic has released a security update for Elasticsearch version 7.13.4 to address CVE-2021-22145.

Vulnerability/
CVE-2021-22145

medium

6.5

CWE

209

21/7/2021

10/5/2022

CVE-2021-22145

First published: Wed Jul 21 2021(Updated: )

A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication details.

Credit: bressers@elastic.co

Affected Software	Affected Version	How to fix
Elastic Elasticsearch	>=7.10.0<=7.13.3
Oracle Communications Cloud Native Core Automated Test Suite	=1.8.0

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

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Reference Links

Frequently Asked Questions

What is CVE-2021-22145?
CVE-2021-22145 is a memory disclosure vulnerability in Elasticsearch 7.10.0 to 7.13.3 error reporting that allows a user to access previously used portions of a data buffer through a malformed query.
Which versions of Elasticsearch are affected by CVE-2021-22145?
Elasticsearch versions 7.10.0 to 7.13.3 are affected by CVE-2021-22145.
What is the severity of CVE-2021-22145?
CVE-2021-22145 has a severity rating of 6.5 (medium).
How can an attacker exploit CVE-2021-22145?
An attacker can exploit CVE-2021-22145 by submitting a malformed query to Elasticsearch that triggers an error message containing previously used data.
Are there any known fixes or patches for CVE-2021-22145?
Yes, Elastic has released a security update for Elasticsearch version 7.13.4 to address CVE-2021-22145.

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