Software Engineering Institute

The 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.

A remote, unauthenticated attacker could cause Ethereal to crash or potentially execute code of the attacker's choice.

Upgrade

Upgrade to version 0.10.5 or later.

Note: Ethereal is considered BETA software at this time.

Disable iSNS protocol dissector

If you are unable to upgrade to version 0.10.5 or later, you can disable the iSNS protocol dissector by performing the following actions in Ethereal:

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.