diff -rup argyllcms-0.70.orig/icc/icc.c argyllcms-0.70.new/icc/icc.c
--- lprof/src/argyll/icc/icc.c	2007-10-19 21:53:54.000000000 -0400
+++ lprof/src/argyll/icc/icc.c	2007-12-12 13:54:47.000000000 -0500
@@ -2999,13 +2999,14 @@ static char *string_XYZNumber(icmXYZNumb
 /* Helper: Return a string that shows the XYZ number value, */
 /* and the Lab D50 number in paren. */
 static char *string_XYZNumber_and_Lab(icmXYZNumber *p) {
-	static char buf[50];
+	static char buf[100];
 	double lab[3];
 	lab[0] = p->X;
 	lab[1] = p->Y;
 	lab[2] = p->Z;
 	icmXYZ2Lab(&icmD50, lab, lab);
-	sprintf(buf,"%f, %f, %f    [Lab %f, %f, %f]", p->X, p->Y, p->Z, lab[0], lab[1], lab[2]);
+	snprintf(buf,sizeof(buf),"%f, %f, %f    [Lab %f, %f, %f]", p->X, p->Y, p->Z, lab[0], lab[1], lab[2]);
+        buf[sizeof(buf)-1] = '\0';
 	return buf;
 }