| modules: |
| - module: std |
| versions: |
| - fixed: 1.18.9 |
| - introduced: 1.19.0 |
| fixed: 1.19.4 |
| vulnerable_at: 1.19.3 |
| packages: |
| - package: net/http |
| symbols: |
| - http2serverConn.canonicalHeader |
| derived_symbols: |
| - ListenAndServe |
| - ListenAndServeTLS |
| - Serve |
| - ServeTLS |
| - Server.ListenAndServe |
| - Server.ListenAndServeTLS |
| - Server.Serve |
| - Server.ServeTLS |
| - http2Server.ServeConn |
| - module: golang.org/x/net |
| versions: |
| - fixed: 0.4.0 |
| vulnerable_at: 0.3.0 |
| packages: |
| - package: golang.org/x/net/http2 |
| symbols: |
| - serverConn.canonicalHeader |
| derived_symbols: |
| - Server.ServeConn |
| description: | |
| An attacker can cause excessive memory growth in a Go server accepting |
| HTTP/2 requests. |
| |
| HTTP/2 server connections contain a cache of HTTP header keys sent by the |
| client. While the total number of entries in this cache is capped, an |
| attacker sending very large keys can cause the server to allocate |
| approximately 64 MiB per open connection. |
| ghsas: |
| - GHSA-xrjj-mj9h-534m |
| credit: Josselin Costanzi |
| references: |
| - report: https://go.dev/issue/56350 |
| - fix: https://go.dev/cl/455717 |
| - fix: https://go.dev/cl/455635 |
| - web: https://groups.google.com/g/golang-announce/c/L_3rmdT0BMU/m/yZDrXjIiBQAJ |
| cve_metadata: |
| id: CVE-2022-41717 |
| cwe: 'CWE 400: Uncontrolled Resource Consumption' |
