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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2015-10-20 11:35:10 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2015-10-20 14:31:40 +0200 |
| commit | 41db8c4733b34d56834162c4d054823c240ffc92 (patch) | |
| tree | 07b3417f8fc0ff7760be7534a6df349f951b5529 /src/httpserver.cpp | |
| parent | da7d57fb9501ad8939a2923f2a60fa540eae8cfa (diff) | |
| download | bitcoin-41db8c4733b34d56834162c4d054823c240ffc92.tar.xz | |
http: Restrict maximum size of request line + headers
Prevent memory exhaustion by sending lots of data.
Also add a test to `httpbasics.py`.
Closes #6425
Diffstat (limited to 'src/httpserver.cpp')
| -rw-r--r-- | src/httpserver.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/httpserver.cpp b/src/httpserver.cpp index 0a7f903e9f..8698abb900 100644 --- a/src/httpserver.cpp +++ b/src/httpserver.cpp @@ -38,6 +38,9 @@ #include <boost/foreach.hpp> #include <boost/scoped_ptr.hpp> +/** Maximum size of http request (request line + headers) */ +static const size_t MAX_HEADERS_SIZE = 8192; + /** HTTP request work item */ class HTTPWorkItem : public HTTPClosure { @@ -414,6 +417,7 @@ bool InitHTTPServer() } evhttp_set_timeout(http, GetArg("-rpcservertimeout", DEFAULT_HTTP_SERVER_TIMEOUT)); + evhttp_set_max_headers_size(http, MAX_HEADERS_SIZE); evhttp_set_max_body_size(http, MAX_SIZE); evhttp_set_gencb(http, http_request_cb, NULL); |