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AUSCERT External Security Bulletin Redistribution
Cisco Industrial Ethernet 4000 and Ethernet 5000 Series
Switches ICMP IPv4 Packet Corruption Vulnerability
16 May 2016
AusCERT Security Bulletin Summary
Product: Cisco Industrial Ethernet 4000 Series Switches
Cisco Industrial Ethernet 5000 Series Switches
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2016-1399
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Cisco Security Advisory
Cisco Industrial Ethernet 4000 and Ethernet 5000 Series Switches ICMP IPv4
Packet Corruption Vulnerability
2016 May 13 16:30 GMT
Base - 5.0
No workarounds available
Cisco Bug IDs:
A vulnerability in the packet processing microcode of Cisco Industrial
Ethernet 4000 Series Switches and Cisco Industrial Ethernet 5000 Series
Switches could allow an unauthenticated, remote attacker to corrupt packets
enqueued on the device for further processing.
The vulnerability is due to improper processing of some ICMP IPv4 packets.
An attacker could exploit this vulnerability by sending ICMP IPv4 packets to
an affected device. A successful exploit could allow an attacker to corrupt
the packet enqueued immediately after the packet sent. This may impact control
traffic to the device itself (Address Resolution Protocol (ARP) traffic) or
traffic transiting the device.
Cisco has released software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are not available.
This advisory is available at the following link:
The following Cisco Industrial Ethernet Series Switches are vulnerable:
Cisco Industrial Ethernet 4000 Series Switches when running Cisco IOS
Software Releases 15.2(2)EA, 15.2(2)EA1, 15.2(2)EA2, or 15.2(4)EA
Cisco Industrial Ethernet 5000 Series Switches when running Cisco IOS
Software Releases 15.2(2)EB or 15.2(2)EB1
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability. Cisco Industrial Ethernet 4000 Series Switches and Cisco
Industrial Ethernet 5000 Series Switches running any Cisco IOS Software
release other than those listed in the Vulnerable Products section are not
affected by this vulnerability.
Workarounds are not available.
Fixed releases that resolve this vulnerability are as follows:
Cisco Industrial Ethernet 4000 Series Switches: 15.2(2)EA3 and
Cisco Industrial Ethernet 5000 Series Switches: 15.2(2)EB2
When considering software upgrades, customers are advised to consult the
Cisco Security Advisories and Responses archive at
http://www.cisco.com/go/psirt and review subsequent advisories to determine
exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Version Description Section Status Date 1.0 Initial public release. -
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR
MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE
RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits
the distribution URL is an uncontrolled copy and may lack important
information or contain factual errors. The information in this document is
intended for end users of Cisco products.
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