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Linux Kernel "isdn_net_setcfg()" Buffer Overflow Vulnerability Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA27842  
Release Date: 2007-11-30
Last Update: 2007-12-17

Critical:
Less critical
Impact: Unknown
Where: Local system
Solution Status: Vendor Patch

OS:Linux Kernel 2.4.x
Linux Kernel 2.6.x


CVE reference:CVE-2007-6063 (Secunia mirror)
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Description:
A vulnerability with unknown impact has been reported in the Linux Kernel.

The vulnerability is caused due to a boundary error within the "isdn_net_setcfg()" function in drivers/isdn/i4l/isdn_net.c when processing IOCTL configuration requests sent to the ISDN pseudo device (/dev/isdnctrl). This can be exploited to cause a buffer overflow via a specially crafted IIOCNETSCF IOCTL request.

Successful exploitation requires write access to /dev/isdnctrl.

The vulnerability is reported in version 2.6.23. Other versions may also be affected.

Solution:
Update to version 2.4.35.5 or 2.6.23.10.

Provided and/or discovered by:
Venustech AD-LAB

Changelog:
2007-12-17: Updated "Solution" section. Added "Linux Kernel 2.4.x" to the list of affected products.

Original Advisory:
http://bugzilla.kernel.org/show_bug.cgi?id=9416


Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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