new Chrome v98 produces extra sdp attributes, up the limit so we do n… (

#1391) * new Chrome v98 produces extra sdp attributes, up the limit so we do not reject * Fix test and change count to unit16 to avoid overflow issues * fix issue reported by codeql Co-authored-by: Divya Sampath Kumar <disa6302@colorado.edu>
awslabs · Feb 8, 2022 · 4c94b9b · 4c94b9b
1 parent 5faadad
commit 4c94b9b
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Showing 4 changed files with 7 additions and 7 deletions.
diff --git a/src/source/PeerConnection/SessionDescription.c b/src/source/PeerConnection/SessionDescription.c
@@ -151,7 +151,8 @@ STATUS setPayloadTypesFromOffer(PHashTable codecTable, PHashTable rtxTable, PSes
     ENTERS();
     STATUS retStatus = STATUS_SUCCESS;
     PSdpMediaDescription pMediaDescription = NULL;
-    UINT8 currentMedia, currentAttribute;
+    UINT8 currentAttribute;
+    UINT16 currentMedia;
     PCHAR attributeValue, end;
     UINT64 parsedPayloadType, hashmapPayloadType, fmtpVal, aptVal;
     UINT16 aptFmtpVals[MAX_SDP_FMTP_VALUES];

diff --git a/src/source/Sdp/Deserialize.c b/src/source/Sdp/Deserialize.c
@@ -5,7 +5,6 @@ STATUS parseMediaName(PSessionDescription pSessionDescription, PCHAR pch, UINT32
 {
     ENTERS();
     STATUS retStatus = STATUS_SUCCESS;
-
     CHK(pSessionDescription->mediaCount < MAX_SDP_SESSION_MEDIA_COUNT, STATUS_BUFFER_TOO_SMALL);
 
     STRNCPY(pSessionDescription->mediaDescriptions[pSessionDescription->mediaCount].mediaName, (pch + SDP_ATTRIBUTE_LENGTH),
@@ -48,7 +47,7 @@ STATUS parseMediaAttributes(PSessionDescription pSessionDescription, PCHAR pch,
     ENTERS();
     STATUS retStatus = STATUS_SUCCESS;
     PCHAR search;
-    UINT8 currentMediaAttributesCount;
+    UINT16 currentMediaAttributesCount;
 
     currentMediaAttributesCount = pSessionDescription->mediaDescriptions[pSessionDescription->mediaCount - 1].mediaAttributesCount;
 

diff --git a/src/source/Sdp/Sdp.h b/src/source/Sdp/Sdp.h
@@ -75,7 +75,7 @@ extern "C" {
 #define MAX_SDP_SESSION_MEDIA_COUNT   5
 #define MAX_SDP_MEDIA_BANDWIDTH_COUNT 2
 
-#define MAX_SDP_ATTRIBUTES_COUNT 128
+#define MAX_SDP_ATTRIBUTES_COUNT 256
 
 /*
  * c=<nettype> <addrtype> <connection-address>
@@ -198,9 +198,9 @@ typedef struct {
 
     SdpMediaDescription mediaDescriptions[MAX_SDP_SESSION_MEDIA_COUNT];
 
-    UINT8 sessionAttributesCount;
+    UINT16 sessionAttributesCount;
 
-    UINT8 mediaCount;
+    UINT16 mediaCount;
 
     UINT8 timezoneCount;
 

diff --git a/tst/SdpApiTest.cpp b/tst/SdpApiTest.cpp
@@ -232,7 +232,7 @@ s=-
 t=0 0
 )";
 
-    for (auto i = 0; i < 250; i++) {
+    for (auto i = 0; i <= MAX_SDP_ATTRIBUTES_COUNT + 1; i++) {
         sessionDescriptionNoMedia += "a=b\n";
     }
-Original file line number
+Diff line change
@@ Expand Up / @@ -232,7 +232,7 @@ s=- @@
     t=0 0
     )";
-        for (auto i = 0; i < 250; i++) {
+        for (auto i = 0; i <= MAX_SDP_ATTRIBUTES_COUNT + 1; i++) {
             sessionDescriptionNoMedia += "a=b\n";
         }
@@ Expand Down @@