CVE-2016-10142
HighSummary
An issue was discovered in the IPv6 protocol related to ICMP Packet Too Big (PTB) messages, affecting all IPv6 implementations from various vendors. An attacker can leverage the generation of IPv6 atomic fragments to trigger fragmentation in arbitrary IPv6 flows, leading to fragmentation-based attacks against legacy IPv6 nodes.
Risk Assessment
Organizations may be vulnerable to DoS attacks, especially on nodes that do not implement the appropriate RFC standards. Unnecessary fragmentation creates additional attack vectors.
Recommendation
It is recommended to update all IPv6 nodes to the latest standards and monitor network traffic for unusual fragmentation patterns. Consider implementing protections against DoS attacks.
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Original NVD description (English source)
An issue was discovered in the IPv6 protocol specification, related to ICMP Packet Too Big (PTB) messages. (The scope of this CVE is all affected IPv6 implementations from all vendors.) The security implications of IP fragmentation have been discussed at length in [RFC6274] and [RFC7739]. An attacker can leverage the generation of IPv6 atomic fragments to trigger the use of fragmentation in an arbitrary IPv6 flow (in scenarios in which actual fragmentation of packets is not needed) and can subsequently perform any type of fragmentation-based attack against legacy IPv6 nodes that do not implement [RFC6946]. That is, employing fragmentation where not actually needed allows for fragmentation-based attack vectors to be employed, unnecessarily. We note that, unfortunately, even nodes that already implement [RFC6946] can be subject to DoS attacks as a result of the generation of IPv6 atomic fragments. Let us assume that Host A is communicating with Host B and that, as a result of the widespr

