CVE-2021-22144: Medium severity elastic vulnerability
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-22144?
CVE-2021-22144 is an uncontrolled recursion vulnerability in Elasticsearch versions before 7.13.3 and 6.8.17.
How does CVE-2021-22144 affect Elasticsearch?
CVE-2021-22144 affects Elasticsearch versions before 7.13.3 and 6.8.17 by allowing an uncontrolled recursion vulnerability that could lead to a denial of service attack.
Who is affected by CVE-2021-22144?
Users of Elasticsearch versions before 7.13.3 and 6.8.17 are affected by CVE-2021-22144.
What is the severity of CVE-2021-22144?
The severity of CVE-2021-22144 is medium, with a CVSS score of 6.5.
How can I fix CVE-2021-22144?
To fix CVE-2021-22144, users should update to Elasticsearch versions 7.13.3 or 6.8.17.