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Vulnerability Note VU#829422Ethereal fails to properly handle malformed iSNS packetsOverviewEthereal contains a vulnerability in the way it processes Internet Storage Name Service (iSNS) packets.I. DescriptionThe Internet Storage Name Service (iSNS) protocol is used to automate the discovery, management, and configuration of iSCSI and Fibre Channel devices in an IP network. Ethereal includes the ability to decode packets containing iSNS data. There is a vulnerability in the way the iSNS dissector decodes malformed iSNS packets. By sending a malformed iSNS packet or convincing a victim to read a malformed packet trace file, a remote, unauthenticated attacker could cause Ethereal to crash or potentially execute code of the attacker's choice.II. ImpactA remote, unauthenticated attacker could cause Ethereal to crash or potentially execute code of the attacker's choice.III. SolutionUpgradeUpgrade to version 0.10.5 or later. 1) Select Analyze->Enabled Protocols 2) Disable the iSNS protocol dissector from the list by unchecking its "Status" checkbox However, it is strongly encouraged to upgrade to version 0.10.5 or later. Systems Affected
References
This vulnerability was reported by the maintainers of Ethereal. This document was written by Damon Morda.
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