Elasticsearch memory disclosure issue (ESA-2021-16)
A memory disclosure vulnerability was identified in Elasticsearch’s 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.
Elasticsearch versions 7.10.0 to 7.13.3
Solutions and Mitigations:
Affected users should update their version of Elasticsearch to 7.13.4. There is no known workaround for this issue.
CVSSv3: 8.0 - AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE ID: CVE-2021-22145
CWE: CWE-125: Out-of-bounds Read