Patch-ID# 100376-01 
Keywords: crt.s crt.o division integer
Synopsis:SunOS 4.1;4.1.1 SPARC:Integer division bug can be used to gain root 
Date: 09/Sept/91
 
SunOS release: 4.1, 4.1.1
 
Unbundled Product: 
 
Unbundled Release: 
 
Topic: 
 
BugId's fixed with this patch: 1069072

Architectures for which this patch is available: sun4, sun4c: SPARC only bug

Patches which may conflict with this patch:

Obsoleted by: SYS_V Rel 4?

Problem Description: Integer division on sparc can be used to gain root access

INSTALL: 

as root:
For your correct OS version, and architecture type:
# mv /sys/sun{4,4c}/OBJ/crt.o /sys/sun{4,4c}/crt.o.FCS
# cp sun{4,4c}/{4.1.1,4.1}/crt.o /sys/sun{4,4c}/OBJ/crt.o

A new kernel will need to be configured (/etc/config), made, and installed.
Please refer to the System and Network Administration Manual on building and
configuring a custom kernel.
