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[v8.x] http2: mitigate reported DoS attacks #29124

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[v8.x] http2: mitigate reported DoS attacks #29124

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4d09a44
http2: improve http2 code a bit
jasnell Oct 30, 2018
b8b4ba5
deps: update nghttp2 to 1.34.0
jasnell Oct 5, 2018
6251b50
deps: update nghttp2 to 1.37.0
gengjiawen Mar 29, 2019
68a44ab
deps: update nghttp2 to 1.38.0
gengjiawen Apr 18, 2019
6a1278b
deps: update nghttp2 to 1.39.1
gengjiawen Jun 27, 2019
6deff8a
deps: update nghttp2 to 1.39.2
addaleax Aug 14, 2019
14fd420
http2: improve JS-side debug logging
addaleax Aug 5, 2019
dd6b143
http2: only call into JS when necessary for session events
addaleax Aug 9, 2019
f717523
http2: do not create ArrayBuffers when no DATA received
addaleax Aug 9, 2019
7652406
http2: limit number of rejected stream openings
addaleax Aug 10, 2019
871393f
http2: limit number of invalid incoming frames
addaleax Aug 12, 2019
a722e8c
http2: handle 0-length headers better
addaleax Aug 10, 2019
cda3bad
http2: shrink default `vector::reserve()` allocations
addaleax Aug 10, 2019
4993fa7
http2: consider 0-length non-end DATA frames an error
addaleax Aug 10, 2019
6a341af
http2: stop reading from socket if writes are in progress
addaleax Aug 10, 2019
bc112af
http2: pause input processing if sending output
addaleax Aug 11, 2019
6912e21
http2: allow security revert for Ping/Settings Flood
addaleax Aug 12, 2019
320fbea
test: apply test-http2-max-session-memory-leak from v12.x
addaleax Aug 13, 2019
5db3a94
fixup! deps: update nghttp2 to 1.39.2
addaleax Aug 14, 2019
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http2: shrink default vector::reserve() allocations 
Allocating memory upfront comes with overhead, and in particular,
`std::vector` implementations do not necessarily return memory
to the system when one might expect that (e.g. after shrinking the
vector).
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@addaleax
addaleax committed Aug 14, 2019
commit cda3bad32c78fad45ad671e837c0fdd0031c5d96
9 changes: 5 additions & 4 deletions src/node_http2.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -668,7 +668,7 @@ Http2Session::Http2Session(Environment* env,
// fails.
CHECK_EQ(fn(&session_, callbacks, this, *opts, *allocator_info), 0);

outgoing_storage_.reserve(4096);
outgoing_storage_.reserve(1024);
outgoing_buffers_.reserve(32);

{
Expand Down Expand Up @@ -1993,9 +1993,10 @@ Http2Stream::Http2Stream(

// Limit the number of header pairs
max_header_pairs_ = session->GetMaxHeaderPairs();
if (max_header_pairs_ == 0)
max_header_pairs_ = DEFAULT_MAX_HEADER_LIST_PAIRS;
current_headers_.reserve(max_header_pairs_);
if (max_header_pairs_ == 0) {
max_header_pairs_ = DEFAULT_MAX_HEADER_LIST_PAIRS;
}
current_headers_.reserve(std::min(max_header_pairs_, 12u));

// Limit the number of header octets
max_header_length_ =
Expand Down