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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-22145
• https://discuss.elastic.co/t/elasticsearch-7-13-4-security-update/279177
• https://security.netapp.com/advisory/ntap-20210827-0006/
• https://www.oracle.com/security-alerts/cpuapr2022.html
• http://packetstormsecurity.com/files/163648/ElasticSearch-7.13.3-Memory-Disclosure.html