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Linux Kernel Program Control Return Denial of Service
Secunia Advisory: SA19639
Release Date: 2006-04-17
Last Update: 2006-06-01
Popularity: 8,597 views

Critical:
Not critical
Impact: DoS
Where: Local system
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:
A vulnerability and a weakness have been reported in Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service).

1) An error exists when the kernel returns program control using SYSRET on Intel EM64T CPUs. The may cause a DoS due to the way Intel EM64T CPUs handle uncanonical return addresses when a user has been able to change the frames.

2) Improperly use of BUG_ON in the "__group_complete_signal()" function may in certain cases be exploited to cause unwanted process crashes.

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



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