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FreeBSD Out-of-Sequence TCP Packet Denial of Service Vulnerability
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Secunia Advisory:
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SA11023
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Release Date:
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2004-03-03
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Last Update:
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2004-03-05
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Popularity:
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10,673 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | FreeBSD 4.x
FreeBSD 5.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:
Alexander Cuttergo has discovered a vulnerability in FreeBSD, which can be exploited by malicious people to cause a DoS (Denial of Service).
FreeBSD does not limit the number of TCP segments in a reassembly queue when processing incoming TCP packets. This can be exploited to consume all available memory buffers by sending multiple out-of-sequence TCP packets to a TCP-based service on an affected system.
Successful exploitation either crashes a vulnerable system or causes it to stop accepting/creating new network connections until the target service is closed.
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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