Description
An issue has been identified with how Elasticsearch handled incoming requests on the HTTP layer. An unauthenticated user could force an Elasticsearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP requests. The issue was identified by Elastic Engineering and we have no indication that the issue is known or that it is being exploited in the wild.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Elastic | Elasticsearch | 7.17.12, 8.0.0 – < 8.8.2, 2.13.3 – < 3.6.0 | 8.8.2 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | elasticsearch | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.elasticsearch:elasticsearch | < 7.17.13 | 7.17.13 | GHSA-2cqf-6xv9-f22w |
| Maven | org.elasticsearch:elasticsearch | >= 8.0.0, < 8.9.0 | 8.9.0 | GHSA-2cqf-6xv9-f22w |
Advisories 1
- WID-SEC-2023-2433 Elasticsearch: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 24, 2023