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Linux Kernel "rt6_fill_node()" Denial of Service Vulnerability
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Secunia Advisory:
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SA31579
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Release Date:
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2008-08-22
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Popularity:
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3,620 views
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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Local system
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Solution Status:
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Vendor Workaround
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| OS: | Linux Kernel 2.6.x
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| CVE reference: | CVE-2008-3686
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Description:
A vulnerability has been reported in the Linux kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL-pointer dereference error within the "rt6_fill_node()" function in net/ipv6/route.c. This can be exploited to trigger a kernel panic via an "ip route get" command.
Successful exploitation requires that the IPv6 default route is not set.
The vulnerability is reported in version 2.6.26.2. Other versions may also be affected.
Solution:
Fixed in the GIT repository.
http://git.kernel.org/?p=linux/kernel...115e500fe9dd2ca11e6f92db9123204f1327a
Restrict local access to trusted users only.
Provided and/or discovered by:
John Gumb
Original Advisory:
http://lkml.org/lkml/2008/8/7/230
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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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