bb11940 - fixing heap overflow in rfc2037. Patch submitted by Suleman…

… Ali
Cisco-Talos · Oct 27, 2017 · d1100be · d1100be
1 parent 39c89d1
commit d1100be
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libclamav/mbox.c b/libclamav/mbox.c
@@ -3148,7 +3148,7 @@ rfc2047(const char *in)
 		memcpy(pout, blobGetData(b), len);
 		blobDestroy(b);
 		messageDestroy(m);
-		if(pout[len - 1] == '\n')
+		if(len > 0 && pout[len - 1] == '\n')
 			pout += len - 1;
 		else
 			pout += len;