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Linux Kernel Denial of Service and Privilege Escalation
Secunia Advisory: SA28696
Release Date: 2008-02-01
Last Update: 2009-01-14
Popularity: 10,479 views

Critical:
Less critical
Impact: DoS
Privilege escalation
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 security issue and a vulnerability have been reported in the Linux Kernel, which potentially can be exploited by malicious, local users to cause a DoS (Denial of Service) or potentially gain escalated privileges.

1) The security is caused due to a NULL pointer dereference in arch/powerpc/platforms/chrp/setup.c, which can be exploited to crash a vulnerable system.

Successful exploitation requires certain PowerPC hardware.

2) The vulnerability is caused due to the "sys_remap_file_pages()" function in mm/fremap.c not properly accounting for certain variables. This can be exploited to e.g. crash the system or potentially gain escalated privileges.

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



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