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Memory leak in the appletalk subsystem in the Linux kernel 2.4.x through 2.4.37.6 and 2.6.x through 2.6.31, when the appletalk and ipddp modules are loaded but the ipddp"N" device is not found, allows remote attackers to cause a denial of service (memory consumption) via IP-DDP datagrams.
Source: MITRE View Analysis Description
Source: MITRE
Base Score: 7.1 HIGH Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C) (V2 legend) Impact Subscore: 6.9 Exploitability Subscore: 8.6
Access Vector (AV): Network Access Complexity (AC): Medium Authentication (AU): None Confidentiality (C): None Integrity (I): None Availability (A): Complete Additional Information: Allows disruption of service
Red Hat is aware of this issue. Please see http://kbase.redhat.com/faq/docs/DOC-19077 This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5, as the affected driver is not enabled in these kernels. The affected driver is available in Red Hat Enterprise MRG. It is also available in Red Hat Enterprise Linux 3, but only if the kernel-unsupported package is installed. Future kernel updates in Red Hat Enterprise Linux 3 and Red Hat Enterprise MRG will address this issue.
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