Fix a buffer overflow in sudo.

Fix a buffer overflow in sudo.

Apply by doing:
cd /usr/src;
patch -p0 < 21_sudo.patch

And rebuild sudo by doing:
cd usr.bin/sudo
make -f Makefile.bsd-wrapper obj
make -f Makefile.bsd-wrapper depend
make -f Makefile.bsd-wrapper
make -f Makefile.bsd-wrapper install

Index: usr.bin/sudo/logging.c
===================================================================
RCS file: /cvs/src/usr.bin/sudo/logging.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- usr.bin/sudo/logging.c 2000/03/27 03:44:38 1.2
+++ usr.bin/sudo/logging.c 2001/02/19 15:13:42 1.3
@@ -112,7 +112,8 @@
/*
* Log the full line, breaking into multiple syslog(3) calls if necessary
*/
- for (p = msg, count = 0; count < strlen(msg) / MAXSYSLOGLEN + 1; count++) {
+ for (p = msg, count = 0; *p && count < strlen(msg) / MAXSYSLOGLEN + 1;
+ count++) {
if (strlen(p) > MAXSYSLOGLEN) {
/*
* Break up the line into what will fit on one syslog(3) line
@@ -135,7 +136,7 @@
*tmp = save; /* restore saved character */

/* Eliminate leading whitespace */
- for (p = tmp; *p != ' '; p++)
+ for (p = tmp; *p != ' ' && *p !='\0'; p++)
;
} else {
if (count == 0)
Index: usr.bin/sudo/version.h
===================================================================
RCS file: /cvs/src/usr.bin/sudo/version.h,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- usr.bin/sudo/version.h 2000/08/13 21:58:52 1.8
+++ usr.bin/sudo/version.h 2001/02/19 15:13:43 1.9
@@ -37,6 +37,6 @@
#ifndef _SUDO_VERSION_H
#define _SUDO_VERSION_H

-static const char version[] = "1.6.3p5";
+static const char version[] = "1.6.3p6";

#endif /* _SUDO_VERSION_H */