3 files changed, 217 insertions, 0 deletions

diff --git a/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0001.patch b/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0001.patch
new file mode 100644
index 0000000000..e1d909b0d1
--- /dev/null
+++ b/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0001.patch
@@ -0,0 +1,110 @@
+From 00201ecd8f982da3b67d4f6868af72a1b03b14e0 Mon Sep 17 00:00:00 2001
+From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
+Date: Sat, 9 Mar 2024 16:26:42 +0900
+Subject: [PATCH] Limit CONTINUATION frames following an incoming HEADER frame
+
+CVE: CVE-2024-28182
+
+Upstream-Status: Backport [https://github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f6868af72a1b03b14e0]
+
+Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
+---
+ lib/includes/nghttp2/nghttp2.h |  7 ++++++-
+ lib/nghttp2_helper.c           |  2 ++
+ lib/nghttp2_session.c          |  7 +++++++
+ lib/nghttp2_session.h          | 10 ++++++++++
+ 4 files changed, 25 insertions(+), 1 deletion(-)
+
+diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
+index 2bd35f4..6cc8c0c 100644
+--- a/lib/includes/nghttp2/nghttp2.h
++++ b/lib/includes/nghttp2/nghttp2.h
+@@ -440,7 +440,12 @@ typedef enum {
+    * exhaustion on server side to send these frames forever and does
+    * not read network.
+    */
+-  NGHTTP2_ERR_FLOODED = -904
++  NGHTTP2_ERR_FLOODED = -904,
++  /**
++   * When a local endpoint receives too many CONTINUATION frames
++   * following a HEADER frame.
++   */
++  NGHTTP2_ERR_TOO_MANY_CONTINUATIONS = -905,
+ } nghttp2_error;
+
+ /**
+diff --git a/lib/nghttp2_helper.c b/lib/nghttp2_helper.c
+index 588e269..98989f6 100644
+--- a/lib/nghttp2_helper.c
++++ b/lib/nghttp2_helper.c
+@@ -336,6 +336,8 @@ const char *nghttp2_strerror(int error_code) {
+            "closed";
+   case NGHTTP2_ERR_TOO_MANY_SETTINGS:
+     return "SETTINGS frame contained more than the maximum allowed entries";
++  case NGHTTP2_ERR_TOO_MANY_CONTINUATIONS:
++    return "Too many CONTINUATION frames following a HEADER frame";
+   default:
+     return "Unknown error code";
+   }
+diff --git a/lib/nghttp2_session.c b/lib/nghttp2_session.c
+index 5c834fa..537127c 100644
+--- a/lib/nghttp2_session.c
++++ b/lib/nghttp2_session.c
+@@ -464,6 +464,7 @@ static int session_new(nghttp2_session **session_ptr,
+   (*session_ptr)->max_send_header_block_length = NGHTTP2_MAX_HEADERSLEN;
+   (*session_ptr)->max_outbound_ack = NGHTTP2_DEFAULT_MAX_OBQ_FLOOD_ITEM;
+   (*session_ptr)->max_settings = NGHTTP2_DEFAULT_MAX_SETTINGS;
++  (*session_ptr)->max_continuations = NGHTTP2_DEFAULT_MAX_CONTINUATIONS;
+
+   if (option) {
+     if ((option->opt_set_mask & NGHTTP2_OPT_NO_AUTO_WINDOW_UPDATE) &&
+@@ -6307,6 +6308,8 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
+           }
+         }
+         session_inbound_frame_reset(session);
++
++        session->num_continuations = 0;
+       }
+       break;
+     }
+@@ -6428,6 +6431,10 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
+       }
+ #endif /* DEBUGBUILD */
+
++      if (++session->num_continuations > session->max_continuations) {
++        return NGHTTP2_ERR_TOO_MANY_CONTINUATIONS;
++      }
++
+       readlen = inbound_frame_buf_read(iframe, in, last);
+       in += readlen;
+
+diff --git a/lib/nghttp2_session.h b/lib/nghttp2_session.h
+index 5f71a16..9a00b0e 100644
+--- a/lib/nghttp2_session.h
++++ b/lib/nghttp2_session.h
+@@ -107,6 +107,10 @@ typedef struct {
+ #define NGHTTP2_DEFAULT_STREAM_RESET_BURST 1000
+ #define NGHTTP2_DEFAULT_STREAM_RESET_RATE 33
+
++/* The default max number of CONTINUATION frames following an incoming
++   HEADER frame. */
++#define NGHTTP2_DEFAULT_MAX_CONTINUATIONS 8
++
+ /* Internal state when receiving incoming frame */
+ typedef enum {
+   /* Receiving frame header */
+@@ -279,6 +283,12 @@ struct nghttp2_session {
+   size_t max_send_header_block_length;
+   /* The maximum number of settings accepted per SETTINGS frame. */
+   size_t max_settings;
++  /* The maximum number of CONTINUATION frames following an incoming
++     HEADER frame. */
++  size_t max_continuations;
++  /* The number of CONTINUATION frames following an incoming HEADER
++     frame.  This variable is reset when END_HEADERS flag is seen. */
++  size_t num_continuations;
+   /* Next Stream ID. Made unsigned int to detect >= (1 << 31). */
+   uint32_t next_stream_id;
+   /* The last stream ID this session initiated.  For client session,
+--
+2.40.0
diff --git a/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0002.patch b/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0002.patch
new file mode 100644
index 0000000000..fee19465d5
--- /dev/null
+++ b/meta/recipes-support/nghttp2/nghttp2/CVE-2024-28182-0002.patch
@@ -0,0 +1,105 @@
+From d71a4668c6bead55805d18810d633fbb98315af9 Mon Sep 17 00:00:00 2001
+From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
+Date: Sat, 9 Mar 2024 16:48:10 +0900
+Subject: [PATCH] Add nghttp2_option_set_max_continuations
+
+CVE: CVE-2024-28182
+
+Upstream-Status: Backport [https://github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810d633fbb98315af9]
+
+Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
+---
+ doc/Makefile.am                |  1 +
+ lib/includes/nghttp2/nghttp2.h | 11 +++++++++++
+ lib/nghttp2_option.c           |  5 +++++
+ lib/nghttp2_option.h           |  5 +++++
+ lib/nghttp2_session.c          |  4 ++++
+ 5 files changed, 26 insertions(+)
+
+diff --git a/doc/Makefile.am b/doc/Makefile.am
+index b9d5a2d..83cfdfd 100644
+--- a/doc/Makefile.am
++++ b/doc/Makefile.am
+@@ -70,6 +70,7 @@ APIDOCS= \
+        nghttp2_option_set_no_recv_client_magic.rst \
+        nghttp2_option_set_peer_max_concurrent_streams.rst \
+        nghttp2_option_set_user_recv_extension_type.rst \
++       nghttp2_option_set_max_continuations.rst \
+        nghttp2_option_set_max_outbound_ack.rst \
+        nghttp2_option_set_max_settings.rst \
+        nghttp2_option_set_stream_reset_rate_limit.rst \
+diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
+index 6cc8c0c..c77cca9 100644
+--- a/lib/includes/nghttp2/nghttp2.h
++++ b/lib/includes/nghttp2/nghttp2.h
+@@ -2724,6 +2724,17 @@ NGHTTP2_EXTERN void nghttp2_option_set_max_outbound_ack(nghttp2_option *option,
+ NGHTTP2_EXTERN void nghttp2_option_set_max_settings(nghttp2_option *option,
+                                                     size_t val);
+
++/**
++ * @function
++ *
++ * This function sets the maximum number of CONTINUATION frames
++ * following an incoming HEADER frame.  If more than those frames are
++ * received, the remote endpoint is considered to be misbehaving and
++ * session will be closed.  The default value is 8.
++ */
++NGHTTP2_EXTERN void nghttp2_option_set_max_continuations(nghttp2_option *option,
++                                                         size_t val);
++
+ /**
+  * @function
+  *
+diff --git a/lib/nghttp2_option.c b/lib/nghttp2_option.c
+index 0d9a404..f3659c1 100644
+--- a/lib/nghttp2_option.c
++++ b/lib/nghttp2_option.c
+@@ -133,3 +133,8 @@ void nghttp2_option_set_stream_reset_rate_limit(nghttp2_option *option,
+   option->stream_reset_burst = burst;
+   option->stream_reset_rate = rate;
+ }
++
++void nghttp2_option_set_max_continuations(nghttp2_option *option, size_t val) {
++  option->opt_set_mask |= NGHTTP2_OPT_MAX_CONTINUATIONS;
++  option->max_continuations = val;
++}
+diff --git a/lib/nghttp2_option.h b/lib/nghttp2_option.h
+index e6ba910..c1b48c7 100644
+--- a/lib/nghttp2_option.h
++++ b/lib/nghttp2_option.h
+@@ -69,6 +69,7 @@ typedef enum {
+   NGHTTP2_OPT_MAX_OUTBOUND_ACK = 1 << 11,
+   NGHTTP2_OPT_MAX_SETTINGS = 1 << 12,
+   NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT = 1 << 15,
++  NGHTTP2_OPT_MAX_CONTINUATIONS = 1 << 16,
+ } nghttp2_option_flag;
+
+ /**
+@@ -96,6 +97,10 @@ struct nghttp2_option {
+    * NGHTTP2_OPT_MAX_SETTINGS
+    */
+   size_t max_settings;
++  /**
++   * NGHTTP2_OPT_MAX_CONTINUATIONS
++   */
++  size_t max_continuations;
+   /**
+    * Bitwise OR of nghttp2_option_flag to determine that which fields
+    * are specified.
+diff --git a/lib/nghttp2_session.c b/lib/nghttp2_session.c
+index 537127c..b390cd5 100644
+--- a/lib/nghttp2_session.c
++++ b/lib/nghttp2_session.c
+@@ -539,6 +539,10 @@ static int session_new(nghttp2_session **session_ptr,
+                            option->stream_reset_burst,
+                            option->stream_reset_rate);
+     }
++
++    if (option->opt_set_mask & NGHTTP2_OPT_MAX_CONTINUATIONS) {
++      (*session_ptr)->max_continuations = option->max_continuations;
++    }
+   }
+
+   rv = nghttp2_hd_deflate_init2(&(*session_ptr)->hd_deflater,
+--
+2.40.0
diff --git a/meta/recipes-support/nghttp2/nghttp2_1.47.0.bb b/meta/recipes-support/nghttp2/nghttp2_1.47.0.bb
index b67313b5c2..79b1cf95c5 100644
--- a/meta/recipes-support/nghttp2/nghttp2_1.47.0.bb
+++ b/meta/recipes-support/nghttp2/nghttp2_1.47.0.bb
@@ -11,6 +11,8 @@ SRC_URI = "\
     file://0001-fetch-ocsp-response-use-python3.patch \
     file://CVE-2023-35945.patch \
     file://CVE-2023-44487.patch \
+    file://CVE-2024-28182-0001.patch \
+    file://CVE-2024-28182-0002.patch \
 "
 SRC_URI[sha256sum] = "68271951324554c34501b85190f22f2221056db69f493afc3bbac8e7be21e7cc"