The UDP implementation in Linux 2.4.x kernels keeps the IP Identification field at 0 for all non-fragmented packets, which could allow remote attackers to determine that a target system is running Linux.
Link | Tags |
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http://www.iss.net/security_center/static/8588.php | vdb entry vendor advisory |
http://www.securityfocus.com/bid/4314 | vdb entry vendor advisory |
http://www.securityfocus.com/archive/1/262840 | vendor advisory mailing list |