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ZyXEL ZyNOS Fragmented IP Packets Denial of Service
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Secunia Advisory:
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SA15463
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Release Date:
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2005-05-24
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Last Update:
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2005-05-26
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Popularity:
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8,063 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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From local network
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Solution Status:
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Vendor Patch
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| OS: | ZyXEL ZyNOS 3.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Federico Kirschbaum has reported a vulnerability in ZyXEL ZyNOS, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the handling of malformed fragmented IP packets. This can be exploited to cause a vulnerable router to consume a large amount of CPU resources.
The vulnerability has been reported in Prestige 650R-31 running ZyNOS FW 3.40 (KO.1). Other Prestige routers and versions of ZyNOS may also be affected.
NOTE: According to the original advisory, the vulnerability was only tested on the local interface. It is therefore not currently known whether the external interface also is affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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