| modules: |
| - module: github.com/prometheus/client_golang |
| versions: |
| - fixed: 1.11.1 |
| vulnerable_at: 1.11.0 |
| packages: |
| - package: github.com/prometheus/client_golang/prometheus/promhttp |
| symbols: |
| - sanitizeMethod |
| derived_symbols: |
| - flusherDelegator.Flush |
| - readerFromDelegator.ReadFrom |
| - responseWriterDelegator.Write |
| - responseWriterDelegator.WriteHeader |
| description: | |
| The Prometheus client_golang HTTP server is vulnerable to a denial of |
| service attack when handling requests with non-standard HTTP methods. |
| |
| In order to be affected, an instrumented software must use any of |
| the promhttp.InstrumentHandler* middleware except `RequestsInFlight`; |
| not filter any specific methods (e.g GET) before middleware; |
| pass a metric with a "method" label name to a middleware; and not |
| have any firewall/LB/proxy that filters away requests with unknown |
| "method". |
| published: 2022-07-15T23:29:02Z |
| cves: |
| - CVE-2022-21698 |
| ghsas: |
| - GHSA-cg3q-j54f-5p7p |
