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Linux Kernel "isdn_net_setcfg()" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA27842
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Release Date:
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2007-11-30
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Last Update:
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2007-12-17
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Popularity:
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8,819 views
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Critical:
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Less critical
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Impact:
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Unknown
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | Linux Kernel 2.4.x
Linux Kernel 2.6.x
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| CVE reference: | CVE-2007-6063
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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
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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