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Linux Kernel Terminal Subsystem Race Condition Vulnerabilities
Secunia Advisory: SA12951
Release Date: 2004-10-22
Popularity: 10,680 views

Critical:
Less critical
Impact: Exposure of system information
Exposure of sensitive information
DoS
Where: From remote
Solution Status: Partial Fix

OS:Linux Kernel 2.2.x
Linux Kernel 2.4.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Two vulnerabilities have been reported in the Linux kernel, which can be exploited to potentially disclose kernel data or cause a DoS (Denial of Service).

1) A race condition in the terminal subsystem can reportedly be exploited by malicious, local users to cause crashes or disclose small random amounts of kernel data by issuing a certain ioctl call on a terminal interface while another thread is performing a read or write operation.

2) Another race condition in the terminal subsystem can potentially be exploited by malicious people to cause a crash by connecting to a PPP dial-up port, issue a switch from console to PPP, and then time the arrival of sent data with the line discipline switch.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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