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Linux Kernel SNMP NAT Helper Denial of Service
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Secunia Advisory:
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SA20225
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Release Date:
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2006-05-23
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Last Update:
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2006-06-13
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Popularity:
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11,436 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | Linux Kernel 2.6.x
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| CVE reference: | CVE-2006-2444
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Description:
A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to some errors within the "snmp_trap_decode()" function when handling certain SNMP packets. This can be exploited to cause memory corruption due to incorrect freeing of memory, which can potentially cause the system to crash.
Successful exploitation requires that the "ip_nat_snmp_basic" module is loaded and that traffic NAT is enabled on port 161 or 162.
Solution:
Update to version 2.6.16.18.
http://kernel.org/
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2006-06-13: Added link to US-CERT vulnerability note.
Original Advisory:
Kernel.org:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.18
http://www.kernel.org/git/?p=linux/ke...6b5a66e93ff125ab871d6b3f7363412cc87e8
Other References:
US-CERT VU#681569:
http://www.kb.cert.org/vuls/id/681569
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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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