UNDERTOW-546 Possible ArrayIndexOutOfBoundsException in HTTP2 HPACK i…

…mplementation
undertow-io · Sep 21, 2015 · acf236b · acf236b
1 parent 33d191c
commit acf236b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/src/main/java/io/undertow/protocols/http2/Hpack.java b/core/src/main/java/io/undertow/protocols/http2/Hpack.java
@@ -151,6 +151,9 @@ static int decodeInteger(ByteBuffer source, int n) throws HpackException {
         if (source.remaining() == 0) {
             return -1;
         }
+        if(n >= PREFIX_TABLE.length) {
+            throw UndertowMessages.MESSAGES.integerEncodedOverTooManyOctets(MAX_INTEGER_OCTETS);
+        }
         int count = 1;
         int sp = source.position();
         int mask = PREFIX_TABLE[n];