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The Libreswan Project has released libreswan-3.21

This is a bugfix and feature release.

New Features:

This release features Opportunistic IPsec using DNSSEC lookups of
IPSECKEY records. It also adds support for the DNSSEC root key rollover
that is currently happening with support for loading new DNSSEC
trust anchors from disk. If using DNSSECi with libreswan, please
upgrade to this version before October 10, 2017.
Support for hardware offloading for certain NIC cards (such as Mellanox)
was added. PFS support was added to the CREATE_CHILD_SA Exchange.

Important bugfixes:

The ID handling code is now more strict when using certificates. Any
ID configured via leftid= or rightid= MUST either be the certificate
DN or be a SubjectAltName (SAN) on the certificate.
A race condition in the threading code was fixed that could cause pluto
to crash on loaded systems that use IKEv1 XAUTH or IKEv2 PAM authentication.
A crasher in FIPS mode when input to hashing algorithms was too weak was fixed.

Compatiblity changes:

The above mentioned stricter ID handling can cause existing connections
to fail if a SubjectAltName is missing from a certificate whose ID is
specified specified in the connection.

You can download libreswan via https at:

https: //download.libreswan.org/libreswan-3.21.tar.gz
https: //download.libreswan.org/libreswan-3.21.tar.gz.asc

The full changelog is available at:
https: //download.libreswan.org/CHANGES

Please report bugs either via one of the mailinglists or at our bug tracker:

https: //lists.libreswan.org/
https: //bugs.libreswan.org/

Binary packages for RHEL/EPEL and Debian/Ubuntu can be found at
https: //download.libreswan.org/binaries/

Binary packages for Fedora and Debian should be available in their respective
repositories a few days after this release.

See also https://libreswan.org/

v3.21 (August 9, 2017)
* FIPS: Don't crash on too weak PSK's in FIPS mode, warn for non-FIPS [Andrew]
* FIPS: rsasigkey: Use modulus F4, not 3 (FIPS 186-4, section B.3.1) [Paul]
* pluto: Support for "idXXX" esp/ike transform IDs removed [Andrew,Paul]
* pluto: Do not return whack error when termining an alias connection [Paul]
* pluto: Remove IKE policy bits on passthrough conns [Paul]
* pluto: Minor memory leak fixes [Paul]
* pluto: Fix memory leak due to addresspool reference count error [Antony]
* pluto: Re-add support for ipsec whack --listevents [Antony]
* pluto: Cleanup listed events on shutdown to please leak-detective [Antony]
* pluto: Perform stricter SubjectAltName checks on configured ID's [Paul]
* pluto: Handle *subnets in --route and --unroute via whack [Mika/Tuomo]
* pluto: Unify IKEv1 XAUTH and IKEv2 PAM threading code [Andrew]
* pluto: Use pthread_cancel() (not SIGINT, conflicts with debuggers) [Andrew]
* pluto: Fix memory corruption with XAUTH/PAM threads [Andrew/Hugh]
* pluto: Fix resource leak processing XAUTH password authentication [Andrew]
* pluto: Fix warnings generated by gcc 7.1 [Lubomir Rintel]
* pluto: NIC offload support nic-offload=auto|yes|no (eg mellanox) [Ilan Tayari]
* pluto: Use common function in ikev1 / ikev2 for dpd/liveness actions [Antony]
* NSS: Try harder finding private keys that reside on hardware tokens [Andrew]
* IKEv2: Opportunistic IPsec support for IPSECKEY records [Antony]
* IKEv2: New dnssec-enable=yes|no, dnssec-rootkey-file=, dnssec-anchors= [Paul]
* IKEv2: If CREATE_CHILD_SA superseded retransmit, drop it [Antony]
* IKEv2: Add PFS support for CREATE_CHILD_SA (RFC7296 1.3.1) [Antony]
* IKEv2: Add PFS support for CREATE_CHILD_SA (RFC7296 1.3.2 responder) [Antony]
* IKEv2: Add PFS support for CREATE_CHILD_SA (RFC7296 1.3.3 responder) [Antony]
* IKEv2: Flush ESP/AH proposals on the initiator. It could be stale [Antony]
* IKEv2: State Machine (svm) updates to simplify CREATE_CHILD_SA [Antony]
* IKEv2: DH role is based on message role not Original Initiator role [Antony]
* IKEv2: Return CHILD_SA_NOT_FOUND when appropriate [Antony]
* IKEv2: After an IKE rekey, rehash inherited Child SA to new parent [Antony]
* IKEv2: Rekeying must update SPIs when inheriting a Child SA [Antony]
* IKEv2: Decrypt and verify the paylods before calling processor [Andrew]
* IKEv2: Fragmentation code cleanup [Andrew]
* IKEv2: Drop CREATE_CHILD_SA message when no IKE state found [Antony]
* IKEv2: Do not send a new delete request for the same Child SA [Antony]
* IKEv2: During Child SA rekey, abort when ESP proposals mismatch [Antony]
* IKEv2: OE client check should take responders behind NAT into account [Paul]
* IKEv2: Improved dpdaction=hold processing [Antony]
* IKEv1: Only initiate and create IKE SA for appropriate dpdaction [Antony]
* IKEv1: Re-add SHA2_256 (prefered) and SHA2_512 to IKEv1 defaults [Andrew]
* IKEv1: Aggressive Mode fixes for sending CERT / CERTREQ payloads [Paul]
* IKEv1: Multiple CISCO_SPLIT_INC's cause duplicate spd_routes [Oleg Rosowiecki]
* X509: Improve some failure logging [Paul]
* XFRM: Use proper alignment for IPv4 AH as per RFC4302 Section [Paul]
* XFRM: Update including system or local copy of xfrm.h [Paul/Antony]
* XFRM: Remove no longer needed {rt}netlink.h copies [Paul]
* KLIPS: cryptoapi: switch from hash to ahash [Richard]
* KLIPS: Add traffic accounting support [Richard/Paul]
* KLIPS: Support for linux 4.11 [Paul]
* lib: Move the alg_info lookup-by-name code to libswan [Andrew]
* lib: Move all conditionally compiled ike_alg*.c files to libswan.a [Andrew]
* addconn: Replace ttoaddr() with calls supporting DNSSEC [Paul/Antony]
* libswan: Algo code cleanup [Andrew]
* libipsecconf: Load specified RSA keys irrespective of policy [Paul]
* libipsecconf/pluto: Be more strict in authby= & type= combinations [Paul]
* libipsecconf: Fail to load connections with unsatisfied auto= clause [Hugh]
* parser: Numerous algorithm parser fixes, eg. esp=aes_ccm_8_128-null [Andrew]
* algparse: (Experimental) modified to run algorithm parser stand-alone [Andrew]
* newhostkey: Actually append to secrets as the warning claims it will [Paul]
* _updown.netkey: Fix syntax failure when PLUTO_MY_SOURCEIP is not set [Tuomo]
* _updown.netkey,klips: Fix use of printf when updating resolv.conf [Tuomo]
* _updown.netkey: Remove wrong use of PLUTO_PEER_CLIENT netmask [Tuomo]
* _updown: Add MAX_CIDR variable for host netmask [Tuomo]
* ipsec import: Trust bits correction did not always trigger [Tuomo]
* building: Convert lib/ to use mk/library.mk [Andrew]
* building: Work around rhel-6 gcc [Andrew]
* building: Add copy unbound-event.h work around broken unbound installs [Paul]
* packaging: Better split rpm and make variables [Paul]
* packaging: Updates for new requirements for ldns, unbound-devel [Paul]
* testing: Add DNSSEC, Opportunistic IPsec testcases, fixups [Multiple people]
* contrib: Munin plugin for libreswan [Kim/Paul]

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