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nodejs12
CVE-2023-44487.patch
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File CVE-2023-44487.patch of Package nodejs12
commit d19f98f619771ce0ffe4f173bc96f8e823460de4 Author: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> Date: Sun Oct 1 00:05:01 2023 +0900 Rework session management index a02a534b..03f6030b 100644 Index: node-v12.22.12/deps/nghttp2/lib/includes/nghttp2/nghttp2.h =================================================================== --- node-v12.22.12.orig/deps/nghttp2/lib/includes/nghttp2/nghttp2.h +++ node-v12.22.12/deps/nghttp2/lib/includes/nghttp2/nghttp2.h @@ -2674,6 +2674,24 @@ NGHTTP2_EXTERN void nghttp2_option_set_m /** * @function * + * This function sets the rate limit for the incoming stream reset + * (RST_STREAM frame). It is server use only. It is a token-bucket + * based rate limiter. |burst| specifies the number of tokens that is + * initially available. The maximum number of tokens is capped to + * this value. |rate| specifies the number of tokens that are + * regenerated per second. An incoming RST_STREAM consumes one token. + * If there is no token available, GOAWAY is sent to tear down the + * connection. |burst| and |rate| default to 1000 and 33 + * respectively. + */ +NGHTTP2_EXTERN void +nghttp2_option_set_stream_reset_rate_limit(nghttp2_option *option, + uint64_t burst, uint64_t rate); + + +/** + * @function + * * This function sets the maximum number of SETTINGS entries per * SETTINGS frame that will be accepted. If more than those entries * are received, the peer is considered to be misbehaving and session Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_option.c =================================================================== --- node-v12.22.12.orig/deps/nghttp2/lib/nghttp2_option.c +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_option.c @@ -126,3 +126,10 @@ void nghttp2_option_set_max_settings(ngh option->opt_set_mask |= NGHTTP2_OPT_MAX_SETTINGS; option->max_settings = val; } + +void nghttp2_option_set_stream_reset_rate_limit(nghttp2_option *option, + uint64_t burst, uint64_t rate) { + option->opt_set_mask |= NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT; + option->stream_reset_burst = burst; + option->stream_reset_rate = rate; +} Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_option.h =================================================================== --- node-v12.22.12.orig/deps/nghttp2/lib/nghttp2_option.h +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_option.h @@ -68,6 +68,9 @@ typedef enum { NGHTTP2_OPT_NO_CLOSED_STREAMS = 1 << 10, NGHTTP2_OPT_MAX_OUTBOUND_ACK = 1 << 11, NGHTTP2_OPT_MAX_SETTINGS = 1 << 12, + NGHTTP2_OPT_SERVER_FALLBACK_RFC7540_PRIORITIES = 1 << 13, + NGHTTP2_OPT_NO_RFC9113_LEADING_AND_TRAILING_WS_VALIDATION = 1 << 14, + NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT = 1 << 15, } nghttp2_option_flag; /** @@ -75,6 +78,11 @@ typedef enum { */ struct nghttp2_option { /** + * NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT + */ + uint64_t stream_reset_burst; + uint64_t stream_reset_rate; + /** * NGHTTP2_OPT_MAX_SEND_HEADER_BLOCK_LENGTH */ size_t max_send_header_block_length; Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_ratelim.c =================================================================== --- /dev/null +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_ratelim.c @@ -0,0 +1,75 @@ +/* + * nghttp2 - HTTP/2 C Library + * + * Copyright (c) 2023 nghttp2 contributors + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#include "nghttp2_ratelim.h" +#include "nghttp2_helper.h" + +void nghttp2_ratelim_init(nghttp2_ratelim *rl, uint64_t burst, uint64_t rate) { + rl->val = rl->burst = burst; + rl->rate = rate; + rl->tstamp = 0; +} + +void nghttp2_ratelim_update(nghttp2_ratelim *rl, uint64_t tstamp) { + uint64_t d, gain; + + if (tstamp == rl->tstamp) { + return; + } + + if (tstamp > rl->tstamp) { + d = tstamp - rl->tstamp; + } else { + d = 1; + } + + rl->tstamp = tstamp; + + if (UINT64_MAX / d < rl->rate) { + rl->val = rl->burst; + + return; + } + + gain = rl->rate * d; + + if (UINT64_MAX - gain < rl->val) { + rl->val = rl->burst; + + return; + } + + rl->val += gain; + rl->val = nghttp2_min(rl->val, rl->burst); +} + +int nghttp2_ratelim_drain(nghttp2_ratelim *rl, uint64_t n) { + if (rl->val < n) { + return -1; + } + + rl->val -= n; + + return 0; +} Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_ratelim.h =================================================================== --- /dev/null +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_ratelim.h @@ -0,0 +1,57 @@ +/* + * nghttp2 - HTTP/2 C Library + * + * Copyright (c) 2023 nghttp2 contributors + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef NGHTTP2_RATELIM_H +#define NGHTTP2_RATELIM_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ + +#include <nghttp2/nghttp2.h> + +typedef struct nghttp2_ratelim { + /* burst is the maximum value of val. */ + uint64_t burst; + /* rate is the amount of value that is regenerated per 1 tstamp. */ + uint64_t rate; + /* val is the amount of value available to drain. */ + uint64_t val; + /* tstamp is the last timestamp in second resolution that is known + to this object. */ + uint64_t tstamp; +} nghttp2_ratelim; + +/* nghttp2_ratelim_init initializes |rl| with the given parameters. */ +void nghttp2_ratelim_init(nghttp2_ratelim *rl, uint64_t burst, uint64_t rate); + +/* nghttp2_ratelim_update updates rl->val with the current |tstamp| + given in second resolution. */ +void nghttp2_ratelim_update(nghttp2_ratelim *rl, uint64_t tstamp); + +/* nghttp2_ratelim_drain drains |n| from rl->val. It returns 0 if it + succeeds, or -1. */ +int nghttp2_ratelim_drain(nghttp2_ratelim *rl, uint64_t n); + +#endif /* NGHTTP2_RATELIM_H */ Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_session.c =================================================================== --- node-v12.22.12.orig/deps/nghttp2/lib/nghttp2_session.c +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_session.c @@ -36,6 +36,7 @@ #include "nghttp2_option.h" #include "nghttp2_http.h" #include "nghttp2_pq.h" +#include "nghttp2_time.h" #include "nghttp2_debug.h" /* @@ -443,6 +444,10 @@ static int session_new(nghttp2_session * NGHTTP2_DEFAULT_MAX_CONCURRENT_STREAMS; (*session_ptr)->pending_enable_push = 1; + nghttp2_ratelim_init(&(*session_ptr)->stream_reset_ratelim, + NGHTTP2_DEFAULT_STREAM_RESET_BURST, + NGHTTP2_DEFAULT_STREAM_RESET_RATE); + if (server) { (*session_ptr)->server = 1; } @@ -527,6 +532,12 @@ static int session_new(nghttp2_session * option->max_settings) { (*session_ptr)->max_settings = option->max_settings; } + + if (option->opt_set_mask & NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT) { + nghttp2_ratelim_init(&(*session_ptr)->stream_reset_ratelim, + option->stream_reset_burst, + option->stream_reset_rate); + } } rv = nghttp2_hd_deflate_init2(&(*session_ptr)->hd_deflater, @@ -4142,6 +4153,23 @@ static int session_process_priority_fram return nghttp2_session_on_priority_received(session, frame); } +static int session_update_stream_reset_ratelim(nghttp2_session *session) { + if (!session->server || (session->goaway_flags & NGHTTP2_GOAWAY_SUBMITTED)) { + return 0; + } + + nghttp2_ratelim_update(&session->stream_reset_ratelim, + nghttp2_time_now_sec()); + + if (nghttp2_ratelim_drain(&session->stream_reset_ratelim, 1) == 0) { + return 0; + } + + return nghttp2_session_add_goaway(session, session->last_recv_stream_id, + NGHTTP2_INTERNAL_ERROR, NULL, 0, + NGHTTP2_GOAWAY_AUX_NONE); +} + int nghttp2_session_on_rst_stream_received(nghttp2_session *session, nghttp2_frame *frame) { int rv; @@ -4171,7 +4199,8 @@ int nghttp2_session_on_rst_stream_receiv if (nghttp2_is_fatal(rv)) { return rv; } - return 0; + + return session_update_stream_reset_ratelim(session); } static int session_process_rst_stream_frame(nghttp2_session *session) { @@ -6942,6 +6971,9 @@ int nghttp2_session_add_goaway(nghttp2_s nghttp2_mem_free(mem, item); return rv; } + + session->goaway_flags |= NGHTTP2_GOAWAY_SUBMITTED; + return 0; } Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_session.h =================================================================== --- node-v12.22.12.orig/deps/nghttp2/lib/nghttp2_session.h +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_session.h @@ -39,6 +39,7 @@ #include "nghttp2_buf.h" #include "nghttp2_callbacks.h" #include "nghttp2_mem.h" +#include "nghttp2_ratelim.h" /* The global variable for tests where we want to disable strict preface handling. */ @@ -102,6 +103,10 @@ typedef struct { /* The default value of maximum number of concurrent streams. */ #define NGHTTP2_DEFAULT_MAX_CONCURRENT_STREAMS 0xffffffffu +/* The default values for stream reset rate limiter. */ +#define NGHTTP2_DEFAULT_STREAM_RESET_BURST 1000 +#define NGHTTP2_DEFAULT_STREAM_RESET_RATE 33 + /* Internal state when receiving incoming frame */ typedef enum { /* Receiving frame header */ @@ -176,7 +181,9 @@ typedef enum { /* Flag means GOAWAY was sent */ NGHTTP2_GOAWAY_SENT = 0x4, /* Flag means GOAWAY was received */ - NGHTTP2_GOAWAY_RECV = 0x8 + NGHTTP2_GOAWAY_RECV = 0x8, + /* Flag means GOAWAY has been submitted at least once */ + NGHTTP2_GOAWAY_SUBMITTED = 0x10 } nghttp2_goaway_flag; /* nghttp2_inflight_settings stores the SETTINGS entries which local @@ -227,6 +234,9 @@ struct nghttp2_session { /* Queue of In-flight SETTINGS values. SETTINGS bearing ACK is not considered as in-flight. */ nghttp2_inflight_settings *inflight_settings_head; + /* Stream reset rate limiter. If receiving excessive amount of + stream resets, GOAWAY will be sent. */ + nghttp2_ratelim stream_reset_ratelim; /* The number of outgoing streams. This will be capped by remote_settings.max_concurrent_streams. */ size_t num_outgoing_streams; Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_time.c =================================================================== --- /dev/null +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_time.c @@ -0,0 +1,62 @@ +/* + * nghttp2 - HTTP/2 C Library + * + * Copyright (c) 2023 nghttp2 contributors + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#include "nghttp2_time.h" + +#ifdef HAVE_TIME_H +# include <time.h> +#endif /* HAVE_TIME_H */ + +#ifdef HAVE_SYSINFOAPI_H +# include <sysinfoapi.h> +#endif /* HAVE_SYSINFOAPI_H */ + +#ifndef HAVE_GETTICKCOUNT64 +static uint64_t time_now_sec(void) { + time_t t = time(NULL); + + if (t == -1) { + return 0; + } + + return (uint64_t)t; +} +#endif /* HAVE_GETTICKCOUNT64 */ + +#ifdef HAVE_CLOCK_GETTIME +uint64_t nghttp2_time_now_sec(void) { + struct timespec tp; + int rv = clock_gettime(CLOCK_MONOTONIC, &tp); + + if (rv == -1) { + return time_now_sec(); + } + + return (uint64_t)tp.tv_sec; +} +#elif defined(HAVE_GETTICKCOUNT64) +uint64_t nghttp2_time_now_sec(void) { return GetTickCount64() / 1000; } +#else /* !HAVE_CLOCK_GETTIME && !HAVE_GETTICKCOUNT64 */ +uint64_t nghttp2_time_now_sec(void) { return time_now_sec(); } +#endif /* !HAVE_CLOCK_GETTIME && !HAVE_GETTICKCOUNT64 */ Index: node-v12.22.12/deps/nghttp2/lib/nghttp2_time.h =================================================================== --- /dev/null +++ node-v12.22.12/deps/nghttp2/lib/nghttp2_time.h @@ -0,0 +1,38 @@ +/* + * nghttp2 - HTTP/2 C Library + * + * Copyright (c) 2023 nghttp2 contributors + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef NGHTTP2_TIME_H +#define NGHTTP2_TIME_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ + +#include <nghttp2/nghttp2.h> + +/* nghttp2_time_now_sec returns seconds from implementation-specific + timepoint. If it is unable to get seconds, it returns 0. */ +uint64_t nghttp2_time_now_sec(void); + +#endif /* NGHTTP2_TIME_H */ Index: node-v12.22.12/deps/nghttp2/nghttp2.gyp =================================================================== --- node-v12.22.12.orig/deps/nghttp2/nghttp2.gyp +++ node-v12.22.12/deps/nghttp2/nghttp2.gyp @@ -51,6 +51,8 @@ 'lib/nghttp2_outbound_item.c', 'lib/nghttp2_pq.c', 'lib/nghttp2_priority_spec.c', + 'lib/nghttp2_ratelim.c', + 'lib/nghttp2_time.c', 'lib/nghttp2_queue.c', 'lib/nghttp2_rcbuf.c', 'lib/nghttp2_session.c',
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