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Old 01-16-2006, 08:46 PM   #1
LXer
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LXer: Linux Kernel Multiple Remote and Local Denial of Service ...


Published at LXer:

Multiple vulnerabilities were identified in Linux Kernel, which could be exploited by remote or local attackers to cause a denial of service. The first issue is due to an infinite loop in the "netlink_rcv_skb" [af_netlink.c] function when handling a specially crafted "nlmsg_len" value, which could be exploited by local attackers to cause a denial of service. The second flaw is due to an error in the PPTP NAT helper that does not properly calculate the offset when handling an inbound "PPTP_IN_CALL_REQUEST" packet, which could be exploited by attackers to crash a vulnerable system. The third vulnerability is due to an error in the PPTP NAT helper that does not properly calculate the offset based on the difference between two pointers to the header, which could be exploited by attackers to cause a kernel crash.

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