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Linux Kernel Multiple Denial of Service Vulnerabilities
Secunia Advisory: SA27664
Release Date: 2007-11-19
Popularity: 10,852 views

Critical:
Moderately critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

OS:Linux Kernel 2.6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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

Description:
Some vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users and by malicious people to cause a DoS (Denial of Service).

1) An error within the "wait_task_stopped()" function can be exploited to cause a DoS by manipulating the state of a child process while the parent is waiting for the state to change (e.g. the parent is inside "wait()" or "waitpid()").

2) An NULL-pointer dereference error exists within the "tcp_sacktag_write_queue()" function when processing ACK packets. This can be exploited to crash an affected system via specially crafted ACK packets.

The vulnerabilities are reported in versions prior to 2.6.23.8.

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



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