Author: markt
Date: Fri Apr 27 17:26:41 2018
New Revision: 1830373
URL: http://svn.apache.org/viewvc?rev=1830373&view=rev
Log:
Improve handing of overflow in the UTF-8 decoder with supplementary characters.
Modified:
tomcat/trunk/java/org/apache/tomcat/util/buf/Utf8Decoder.java
tomcat/trunk/webapps/docs/changelog.xml
Modified: tomcat/trunk/java/org/apache/tomcat/util/buf/Utf8Decoder.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/buf/Utf8Decoder.java?rev=1830373&r1=1830372&r2=1830373&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/tomcat/util/buf/Utf8Decoder.java (original)
+++ tomcat/trunk/java/org/apache/tomcat/util/buf/Utf8Decoder.java Fri Apr 27
17:26:41 2018
@@ -278,6 +278,11 @@ public class Utf8Decoder extends Charset
outRemaining--;
} else {
if (outRemaining < 2) {
+ // Encoded with 4 bytes. inIndex currently points
+ // to the final byte. Move it back to first byte.
+ inIndex -= 3;
+ in.position(inIndex - in.arrayOffset());
+ out.position(outIndex - out.arrayOffset());
return CoderResult.OVERFLOW;
}
cArr[outIndex++] = (char) ((jchar >> 0xA) + 0xD7C0);
Modified: tomcat/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1830373&r1=1830372&r2=1830373&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Fri Apr 27 17:26:41 2018
@@ -94,6 +94,10 @@
behaviour is enabled by default and configurable via the new Context
attribute <code>allowMultipleLeadingForwardSlashInPath</code>. (markt)
</add>
+ <fix>
+ Improve handing of overflow in the UTF-8 decoder with supplementary
+ characters. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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