The MITRE CVE dictionary describes this issue as:
The IPv6 SCTP implementation in net/sctp/ipv6.c in the Linux kernel through 3.11.1 uses data structures and function calls that do not trigger an intended configuration of IPsec encryption, which allows remote attackers to obtain sensitive information by sniffing the network.
Find out more about CVE-2013-4350 from the
MITRE CVE dictionary dictionary and
The risks associated with fixing this bug in Red Hat Enterprise Linux 5 and 6 are greater than its security impact. This issue is not currently planned to be addressed in future kernel updates for Red Hat Enterprise Linux 5 and 6.