Cisco IOS contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered by the UDP ECHO service, which will disclose parts of memory in response to ECHO requests, resulting in a loss of confidentiality.
Unknown or Incomplete
Upgrade to version recommended by Cisco product matrix, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s):
The workaround is to disable udp-small-services. The syntax for this command on routers and switches running Cisco IOS software is as follows:
no service udp-small-servers
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