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| /openbmc/linux/net/netfilter/ |
| H A D | nf_conntrack_sip.c | 444f9017 Mon Oct 24 11:07:23 CDT 2016 Ulrich Weber <ulrich.weber@riverbed.com> netfilter: nf_conntrack_sip: extend request line validation
on SIP requests, so a fragmented TCP SIP packet from an allow header starting with
INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 0
will not bet interpreted as an INVITE request. Also Request-URI must start with an alphabetic character.
Confirm with RFC 3261
Request-Line = Method SP Request-URI SP SIP-Version CRLF
Fixes: 30f33e6dee80 ("[NETFILTER]: nf_conntrack_sip: support method specific request/response handling")
Signed-off-by: Ulrich Weber <ulrich.weber@riverbed.com>
Acked-by: Marco Angaroni <marcoangaroni@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
444f9017 Mon Oct 24 11:07:23 CDT 2016 Ulrich Weber <ulrich.weber@riverbed.com> netfilter: nf_conntrack_sip: extend request line validation
on SIP requests, so a fragmented TCP SIP packet from an allow header starting with
INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 0
will not bet interpreted as an INVITE request. Also Request-URI must start with an alphabetic character.
Confirm with RFC 3261
Request-Line = Method SP Request-URI SP SIP-Version CRLF
Fixes: 30f33e6dee80 ("[NETFILTER]: nf_conntrack_sip: support method specific request/response handling")
Signed-off-by: Ulrich Weber <ulrich.weber@riverbed.com>
Acked-by: Marco Angaroni <marcoangaroni@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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