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Vulnerability Note VU#835846Ethereal fails to properly handle malfored SNMP packetsOverviewEthereal contains a vulnerability in the way it processes Simple Network Management Protocol (SNMP) packets.I. DescriptionThe Simple Network Management Protocol (SNMP) protocol enables network and system administrators to remotely monitor and configure devices on the network (devices such as switches and routers). Ethereal includes the ability to decode packets containing SNMP data. There is a vulnerability in the way the SNMP dissector decodes SNMP packets containing a malformed or missing community string. By sending a specially crafted SNMP 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.
2) Disable the SNMP 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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