PT-2021-14869 · Elastic · Elasticsearch

Published 2021-07-26 · Updated 2024-03-06 · CVE-2021-22144

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Elasticsearch versions prior to 7.13.3 Elasticsearch versions prior to 6.8.17

Description: An uncontrolled recursion issue in the Elasticsearch Grok parser could lead to a denial of service attack. A user who can submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.

Recommendations: For versions prior to 7.13.3, update to version 7.13.3 or later. For versions prior to 6.8.17, update to version 6.8.17 or later. As a temporary workaround, consider restricting access to the Grok parser to minimize the risk of exploitation.

Fix

DoS

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

BIT-ELASTICSEARCH-2021-22144

CVE-2021-22144

GHSA-3393-HVRJ-W7V3

Affected Products

Elasticsearch

References · 13

• https://discuss.elastic.co/t/elasticsearch-7-13-3-and-6-8-17-security-update/278100 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3393-hvrj-w7v3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22144 · Security Note
• https://oracle.com/security-alerts/cpuapr2022.html · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-22144 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-elasticsearch-2021-22144 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-22144 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-22144 · Security Note
• https://ubuntu.com/security/CVE-2021-22144 · Vendor Advisory
• https://t.me/cibsecurity/26486 · Telegram Post
• https://security.netapp.com/advisory/ntap-20210827-0006 · Note
• https://t.me/cvenotify/18622 · Telegram Post
• https://t.me/cvenotify/18109 · Telegram Post