SB2021070907 - Denial of service in Elasticsearch
Published: July 9, 2021
Security Bulletin ID
SB2021070907
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2021-22144)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an uncontrolled recursion issue in the Elasticsearch Grok parser. A remote authenticated attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.