+strongswan-5.5.2
+----------------
+
+- Support of Diffie-Hellman group 31 using Curve25519 for IKE as defined
+ by RFC 8031.
+
+- Support of Ed25519 digital signature algorithm for IKEv2 as defined by
+ draft-ietf-ipsecme-eddsa. Ed25519-based public key pairs, X.509 certificates
+ and CRLs can be generated and printed by the pki tool.
+
+- In-place update of cached base and delta CRLs does no leave dozens
+ of stale copies in cache memory.
+
+
+strongswan-5.5.1
+----------------
+
+- The newhope plugin implements the post-quantum NewHope key exchange algorithm
+ proposed in their 2015 paper by Erdem Alkim, Léo Ducas, Thomas Pöppelmann and
+ Peter Schwabe.
+
+- The libstrongswan crypto factory now offers the registration of Extended
+ Output Functions (XOFs). Currently supported XOFs are SHAKE128 and SHAKE256
+ implemented by the sha3 plugin, ChaCHa20 implemented by the chapoly plugin
+ and the more traditional MGF1 Mask Generation Functions based on the SHA-1,
+ SHA-256 and SHA-512 hash algorithms implemented by the new mgf1 plugin.
+
+- The pki tool, with help of the pkcs1 or openssl plugins, can parse private
+ keys in any of the supported formats without having to know the exact type.
+ So instead of having to specify rsa or ecdsa explicitly the keyword priv may
+ be used to indicate a private key of any type. Similarly, swanctl can load
+ any type of private key from the swanctl/private directory.
+
+- The pki tool can handle RSASSA-PKCS1v1.5-with-SHA-3 signatures using the
+ sha3 and gmp plugins.
+
+- The VICI flush-certs command flushes certificates from the volatile
+ certificate cache. Optionally the type of the certificates to be
+ flushed (e.g. type = x509_crl) can be specified.
+
+- Setting cache_crls = yes in strongswan.conf the vici plugin saves regular,
+ base and delta CRLs to disk.
+
+- IKE fragmentation is now enabled by default with the default fragment size
+ set to 1280 bytes for both IP address families.
+
+- libtpmtss: In the TSS2 API the function TeardownSocketTcti() was replaced by
+ tss2_tcti_finalize().
+
+
+strongswan-5.5.0
+----------------
+
+- The new libtpmtss library offers support for both TPM 1.2 and TPM 2.0
+ Trusted Platform Modules. This allows the Attestation IMC/IMV pair to
+ do TPM 2.0 based attestation.
+
+- The behavior during IKEv2 exchange collisions has been improved/fixed in
+ several corner cases and support for TEMPORARY_FAILURE and CHILD_SA_NOT_FOUND
+ notifies, as defined by RFC 7296, has been added.
+
+- IPsec policy priorities can be set manually (e.g. for high-priority drop
+ policies) and outbound policies may be restricted to a network interface.
+
+- The scheme for the automatically calculated default priorities has been
+ changed and now also considers port masks, which were added with 5.4.0.
+
+- FWD policies are now installed in both directions in regards to the traffic
+ selectors. Because such "outbound" FWD policies could conflict with "inbound"
+ FWD policies of other SAs they are installed with a lower priority and don't
+ have a reqid set, which allows kernel plugins to distinguish between the two
+ and prefer those with a reqid.
+
+- For outbound IPsec SAs no replay window is configured anymore.
+
+- Enhanced the functionality of the swanctl --list-conns command by listing
+ IKE_SA and CHILD_SA reauthentication and rekeying settings, and EAP/XAuth
+ identities and EAP types.
+
+- DNS servers installed by the resolve plugin are now refcounted, which should
+ fix its use with make-before-break reauthentication. Any output written to
+ stderr/stdout by resolvconf is now logged.
+
+- The methods in the kernel interfaces have been changed to take structs instead
+ of long lists of arguments. Similarly the constructors for peer_cfg_t and
+ child_cfg_t now take structs.
+
+
+strongswan-5.4.0
+----------------
+
+- Support for IKEv2 redirection (RFC 5685) has been added. Plugins may
+ implement the redirect_provider_t interface to decide if and when to redirect
+ connecting clients. It is also possible to redirect established IKE_SAs based
+ on different selectors via VICI/swanctl. Unless disabled in strongswan.conf
+ the charon daemon will follow redirect requests received from servers.
+
+- The ike: prefix enables the explicit configuration of signature scheme
+ constraints against IKEv2 authentication in rightauth, which allows the use
+ of different signature schemes for trustchain verification and authentication.
+
+- The initiator of an IKEv2 make-before-break reauthentication now suspends
+ online certificate revocation checks (OCSP, CRLs) until the new IKE_SA and all
+ CHILD_SAs are established. This is required if the checks are done over the
+ CHILD_SA established with the new IKE_SA. This is not possible until the
+ initiator installs this SA and that only happens after the authentication is
+ completed successfully. So we suspend the checks during the reauthentication
+ and do them afterwards, if they fail the IKE_SA is closed. This change has no
+ effect on the behavior during the authentication of the initial IKE_SA.
+
+- For the vici plugin a Vici:Session Perl CPAN module has been added to allow
+ Perl applications to control and/or monitor the IKE daemon using the VICI
+ interface, similar to the existing Python egg or Ruby gem.
+
+- Traffic selectors with port ranges can now be configured in the Linux kernel:
+ e.g. remote_ts = 10.1.0.0/16[tcp/20-23] local_ts = dynamic[tcp/32768-65535].
+ The port range must map to a port mask, though since the kernel does not
+ support arbitrary ranges.
+
+- The vici plugin allows the configuration of IPv4 and IPv6 address ranges
+ in local and remote traffic selectors. Since both the Linux kernel and
+ iptables cannot handle arbitrary ranges, address ranges are mapped to the next
+ larger CIDR subnet by the kernel-netlink and updown plugins, respectively.
+
+- Implemented IKEv1 IPv4/IPv6 address subnet and range identities that can be
+ used as owners of shared secrets.
+
+
+strongswan-5.3.5
+----------------
+
+- Properly handle potential EINTR errors in sigwaitinfo(2) calls that replaced
+ sigwait(3) calls with 5.3.4.
+
+- RADIUS retransmission timeouts are now configurable, courtesy of Thom Troy.
+
+
+strongswan-5.3.4
+----------------
+
+- Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin that
+ was caused by insufficient verification of the internal state when handling
+ MSCHAPv2 Success messages received by the client.
+ This vulnerability has been registered as CVE-2015-8023.
+
+- The sha3 plugin implements the SHA3 Keccak-F1600 hash algorithm family.
+ Within the strongSwan framework SHA3 is currently used for BLISS signatures
+ only because the OIDs for other signature algorithms haven't been defined
+ yet. Also the use of SHA3 for IKEv2 has not been standardized yet.
+
+
+strongswan-5.3.3
+----------------
+
+- Added support for the ChaCha20/Poly1305 AEAD cipher specified in RFC 7539 and
+ RFC 7634 using the chacha20poly1305 ike/esp proposal keyword. The new chapoly
+ plugin implements the cipher, if possible SSE-accelerated on x86/x64
+ architectures. It is usable both in IKEv2 and the strongSwan libipsec ESP
+ backend. On Linux 4.2 or newer the kernel-netlink plugin can configure the
+ cipher for ESP SAs.
+
+- The vici interface now supports the configuration of auxiliary certification
+ authority information as CRL and OCSP URIs.
+
+- In the bliss plugin the c_indices derivation using a SHA-512 based random
+ oracle has been fixed, generalized and standardized by employing the MGF1 mask
+ generation function with SHA-512. As a consequence BLISS signatures unsing the
+ improved oracle are not compatible with the earlier implementation.
+
+- Support for auto=route with right=%any for transport mode connections has
+ been added (the ikev2/trap-any scenario provides examples).
+
+- The starter daemon does not flush IPsec policies and SAs anymore when it is
+ stopped. Already existing duplicate policies are now overwritten by the IKE
+ daemon when it installs its policies.
+
+- Init limits (like charon.init_limit_half_open) can now optionally be enforced
+ when initiating SAs via VICI. For this, IKE_SAs initiated by the daemon are
+ now also counted as half-open SAs, which, as a side-effect, fixes the status
+ output while connecting (e.g. in ipsec status).
+
+- Symmetric configuration of EAP methods in left|rightauth is now possible when
+ mutual EAP-only authentication is used (previously, the client had to
+ configure rightauth=eap or rightauth=any, which prevented it from using this
+ same config as responder).
+
+- The initiator flag in the IKEv2 header is compared again (wasn't the case
+ since 5.0.0) and packets that have the flag set incorrectly are again ignored.
+
+- Implemented a demo Hardcopy Device IMC/IMV pair based on the "Hardcopy
+ Device Health Assessment Trusted Network Connect Binding" (HCD-TNC)
+ document drafted by the IEEE Printer Working Group (PWG).
+
+- Fixed IF-M segmentation which failed in the presence of multiple small
+ attributes in front of a huge attribute to be segmented.
+
+
+strongswan-5.3.2
+----------------
+
+- Fixed a vulnerability that allowed rogue servers with a valid certificate
+ accepted by the client to trick it into disclosing its username and even
+ password (if the client accepts EAP-GTC). This was caused because constraints
+ against the responder's authentication were enforced too late.
+ This vulnerability has been registered as CVE-2015-4171.
+
+
+strongswan-5.3.1
+----------------
+
+- Fixed a denial-of-service and potential remote code execution vulnerability
+ triggered by IKEv1/IKEv2 messages that contain payloads for the respective
+ other IKE version. Such payload are treated specially since 5.2.2 but because
+ they were still identified by their original payload type they were used as
+ such in some places causing invalid function pointer dereferences.
+ The vulnerability has been registered as CVE-2015-3991.
+
+- The new aesni plugin provides CBC, CTR, XCBC, CMAC, CCM and GCM crypto
+ primitives for AES-128/192/256. The plugin requires AES-NI and PCLMULQDQ
+ instructions and works on both x86 and x64 architectures. It provides
+ superior crypto performance in userland without any external libraries.
+
+
+strongswan-5.3.0
+----------------
+
+- Added support for IKEv2 make-before-break reauthentication. By using a global
+ CHILD_SA reqid allocation mechanism, charon supports overlapping CHILD_SAs.
+ This allows the use of make-before-break instead of the previously supported
+ break-before-make reauthentication, avoiding connectivity gaps during that
+ procedure. As the new mechanism may fail with peers not supporting it (such
+ as any previous strongSwan release) it must be explicitly enabled using
+ the charon.make_before_break strongswan.conf option.
+
+- Support for "Signature Authentication in IKEv2" (RFC 7427) has been added.
+ This allows the use of stronger hash algorithms for public key authentication.
+ By default, signature schemes are chosen based on the strength of the
+ signature key, but specific hash algorithms may be configured in leftauth.
+
+- Key types and hash algorithms specified in rightauth are now also checked
+ against IKEv2 signature schemes. If such constraints are used for certificate
+ chain validation in existing configurations, in particular with peers that
+ don't support RFC 7427, it may be necessary to disable this feature with the
+ charon.signature_authentication_constraints setting, because the signature
+ scheme used in classic IKEv2 public key authentication may not be strong
+ enough.
+
+- The new connmark plugin allows a host to bind conntrack flows to a specific
+ CHILD_SA by applying and restoring the SA mark to conntrack entries. This
+ allows a peer to handle multiple transport mode connections coming over the
+ same NAT device for client-initiated flows. A common use case is to protect
+ L2TP/IPsec, as supported by some systems.
+
+- The forecast plugin can forward broadcast and multicast messages between
+ connected clients and a LAN. For CHILD_SA using unique marks, it sets up
+ the required Netfilter rules and uses a multicast/broadcast listener that
+ forwards such messages to all connected clients. This plugin is designed for
+ Windows 7 IKEv2 clients, which announces its services over the tunnel if the
+ negotiated IPsec policy allows it.
+
+- For the vici plugin a Python Egg has been added to allow Python applications
+ to control or monitor the IKE daemon using the VICI interface, similar to the
+ existing ruby gem. The Python library has been contributed by Björn Schuberg.
+
+- EAP server methods now can fulfill public key constraints, such as rightcert
+ or rightca. Additionally, public key and signature constraints can be
+ specified for EAP methods in the rightauth keyword. Currently the EAP-TLS and
+ EAP-TTLS methods provide verification details to constraints checking.
+
+- Upgrade of the BLISS post-quantum signature algorithm to the improved BLISS-B
+ variant. Can be used in conjunction with the SHA256, SHA384 and SHA512 hash
+ algorithms with SHA512 being the default.
+
+- The IF-IMV 1.4 interface now makes the IP address of the TNC access requestor
+ as seen by the TNC server available to all IMVs. This information can be
+ forwarded to policy enforcement points (e.g. firewalls or routers).
+
+- The new mutual tnccs-20 plugin parameter activates mutual TNC measurements
+ in PB-TNC half-duplex mode between two endpoints over either a PT-EAP or
+ PT-TLS transport medium.
+
+
+strongswan-5.2.2
+----------------
+
+- Fixed a denial-of-service vulnerability triggered by an IKEv2 Key Exchange
+ payload that contains the Diffie-Hellman group 1025. This identifier was
+ used internally for DH groups with custom generator and prime. Because
+ these arguments are missing when creating DH objects based on the KE payload
+ an invalid pointer dereference occurred. This allowed an attacker to crash
+ the IKE daemon with a single IKE_SA_INIT message containing such a KE
+ payload. The vulnerability has been registered as CVE-2014-9221.
+
+- The left/rightid options in ipsec.conf, or any other identity in strongSwan,
+ now accept prefixes to enforce an explicit type, such as email: or fqdn:.
+ Note that no conversion is done for the remaining string, refer to
+ ipsec.conf(5) for details.
+
+- The post-quantum Bimodal Lattice Signature Scheme (BLISS) can be used as
+ an IKEv2 public key authentication method. The pki tool offers full support
+ for the generation of BLISS key pairs and certificates.
+
+- Fixed mapping of integrity algorithms negotiated for AH via IKEv1. This could
+ cause interoperability issues when connecting to older versions of charon.
+
+
+strongswan-5.2.1
+----------------
+
+- The new charon-systemd IKE daemon implements an IKE daemon tailored for use
+ with systemd. It avoids the dependency on ipsec starter and uses swanctl
+ as configuration backend, building a simple and lightweight solution. It
+ supports native systemd journal logging.
+
+- Support for IKEv2 fragmentation as per RFC 7383 has been added. Like IKEv1
+ fragmentation it can be enabled by setting fragmentation=yes in ipsec.conf.
+
+- Support of the TCG TNC IF-M Attribute Segmentation specification proposal.
+ All attributes can be segmented. Additionally TCG/SWID Tag, TCG/SWID Tag ID
+ and IETF/Installed Packages attributes can be processed incrementally on a
+ per segment basis.
+
+- The new ext-auth plugin calls an external script to implement custom IKE_SA
+ authorization logic, courtesy of Vyronas Tsingaras.
+
+- For the vici plugin a ruby gem has been added to allow ruby applications
+ to control or monitor the IKE daemon. The vici documentation has been updated
+ to include a description of the available operations and some simple examples
+ using both the libvici C interface and the ruby gem.
+
+
+strongswan-5.2.0
+----------------
+
+- strongSwan has been ported to the Windows platform. Using a MinGW toolchain,
+ many parts of the strongSwan codebase run natively on Windows 7 / 2008 R2
+ and newer releases. charon-svc implements a Windows IKE service based on
+ libcharon, the kernel-iph and kernel-wfp plugins act as networking and IPsec
+ backend on the Windows platform. socket-win provides a native IKE socket
+ implementation, while winhttp fetches CRL and OCSP information using the
+ WinHTTP API.
+
+- The new vici plugin provides a Versatile IKE Configuration Interface for
+ charon. Using the stable IPC interface, external applications can configure,
+ control and monitor the IKE daemon. Instead of scripting the ipsec tool
+ and generating ipsec.conf, third party applications can use the new interface
+ for more control and better reliability.
+
+- Built upon the libvici client library, swanctl implements the first user of
+ the VICI interface. Together with a swanctl.conf configuration file,
+ connections can be defined, loaded and managed. swanctl provides a portable,
+ complete IKE configuration and control interface for the command line.
+ The first six swanctl example scenarios have been added.
+
+- The SWID IMV implements a JSON-based REST API which allows the exchange
+ of SWID tags and Software IDs with the strongTNC policy manager.
+
+- The SWID IMC can extract all installed packages from the dpkg (Debian,
+ Ubuntu, Linux Mint etc.), rpm (Fedora, RedHat, OpenSUSE, etc.), or
+ pacman (Arch Linux, Manjaro, etc.) package managers, respectively, using the
+ swidGenerator (https://github.com/strongswan/swidGenerator) which generates
+ SWID tags according to the new ISO/IEC 19770-2:2014 standard.
+
+- All IMVs now share the access requestor ID, device ID and product info
+ of an access requestor via a common imv_session object.
+
+- The Attestation IMC/IMV pair supports the IMA-NG measurement format
+ introduced with the Linux 3.13 kernel.
+
+- The aikgen tool generates an Attestation Identity Key bound to a TPM.
+
+- Implemented the PT-EAP transport protocol (RFC 7171) for Trusted Network
+ Connect.
+
+- The ipsec.conf replay_window option defines connection specific IPsec replay
+ windows. Original patch courtesy of Zheng Zhong and Christophe Gouault from
+ 6Wind.
+
+
+strongswan-5.1.3
+----------------
+
+- Fixed an authentication bypass vulnerability triggered by rekeying an
+ unestablished IKEv2 SA while it gets actively initiated. This allowed an
+ attacker to trick a peer's IKE_SA state to established, without the need to
+ provide any valid authentication credentials. The vulnerability has been
+ registered as CVE-2014-2338.
+
+- The acert plugin evaluates X.509 Attribute Certificates. Group membership
+ information encoded as strings can be used to fulfill authorization checks
+ defined with the rightgroups option. Attribute Certificates can be loaded
+ locally or get exchanged in IKEv2 certificate payloads.
+
+- The pki command gained support to generate X.509 Attribute Certificates
+ using the --acert subcommand, while the --print command supports the ac type.
+ The openac utility has been removed in favor of the new pki functionality.
+
+- The libtls TLS 1.2 implementation as used by EAP-(T)TLS and other protocols
+ has been extended by AEAD mode support, currently limited to AES-GCM.
+
+
+strongswan-5.1.2
+----------------
+
+- A new default configuration file layout is introduced. The new default
+ strongswan.conf file mainly includes config snippets from the strongswan.d
+ and strongswan.d/charon directories (the latter containing snippets for all
+ plugins). The snippets, with commented defaults, are automatically
+ generated and installed, if they don't exist yet. They are also installed
+ in $prefix/share/strongswan/templates so existing files can be compared to
+ the current defaults.
+
+- As an alternative to the non-extensible charon.load setting, the plugins
+ to load in charon (and optionally other applications) can now be determined
+ via the charon.plugins.<name>.load setting for each plugin (enabled in the
+ new default strongswan.conf file via the charon.load_modular option).
+ The load setting optionally takes a numeric priority value that allows
+ reordering the plugins (otherwise the default plugin order is preserved).
+
+- All strongswan.conf settings that were formerly defined in library specific
+ "global" sections are now application specific (e.g. settings for plugins in
+ libstrongswan.plugins can now be set only for charon in charon.plugins).
+ The old options are still supported, which now allows to define defaults for
+ all applications in the libstrongswan section.
+
+- The ntru libstrongswan plugin supports NTRUEncrypt as a post-quantum
+ computer IKE key exchange mechanism. The implementation is based on the
+ ntru-crypto library from the NTRUOpenSourceProject. The supported security
+ strengths are ntru112, ntru128, ntru192, and ntru256. Since the private DH
+ group IDs 1030..1033 have been assigned, the strongSwan Vendor ID must be
+ sent (charon.send_vendor_id = yes) in order to use NTRU.
+
+- Defined a TPMRA remote attestation workitem and added support for it to the
+ Attestation IMV.
+
+- Compatibility issues between IPComp (compress=yes) and leftfirewall=yes as
+ well as multiple subnets in left|rightsubnet have been fixed.
+
+- When enabling its "session" strongswan.conf option, the xauth-pam plugin opens
+ and closes a PAM session for each established IKE_SA. Patch courtesy of
+ Andrea Bonomi.
+
+- The strongSwan unit testing framework has been rewritten without the "check"
+ dependency for improved flexibility and portability. It now properly supports
+ multi-threaded and memory leak testing and brings a bunch of new test cases.
+
+
strongswan-5.1.1
----------------
+- Fixed a denial-of-service vulnerability and potential authorization bypass
+ triggered by a crafted ID_DER_ASN1_DN ID payload. The cause is an insufficient
+ length check when comparing such identities. The vulnerability has been
+ registered as CVE-2013-6075.
+
+- Fixed a denial-of-service vulnerability triggered by a crafted IKEv1
+ fragmentation payload. The cause is a NULL pointer dereference. The
+ vulnerability has been registered as CVE-2013-6076.
+
- The lean stand-alone pt-tls-client can set up a RFC 6876 PT-TLS session
- with a strongSwan policy enforcement point which uses the tnc-pdp charon plugin.
+ with a strongSwan policy enforcement point which uses the tnc-pdp charon
+ plugin.
- The new TCG TNC SWID IMC/IMV pair supports targeted SWID requests for either
full SWID Tag or concise SWID Tag ID inventories.
the Authentication Header protocol. Supported are plain AH(+IPComp) SAs only,
but not the deprecated RFC2401 style ESP+AH bundles.
+- The generation of initialization vectors for IKE and ESP (when using libipsec)
+ is now modularized and IVs for e.g. AES-GCM are now correctly allocated
+ sequentially, while other algorithms like AES-CBC still use random IVs.
+
- The left and right options in ipsec.conf can take multiple address ranges
and subnets. This allows connection matching against a larger set of
addresses, for example to use a different connection for clients connecting
from a internal network.
+- For all those who have a queasy feeling about the NIST elliptic curve set,
+ the Brainpool curves introduced for use with IKE by RFC 6932 might be a
+ more trustworthy alternative.
+
- The kernel-libipsec userland IPsec backend now supports usage statistics,
volume based rekeying and accepts ESPv3 style TFC padded packets.
+- With two new strongswan.conf options fwmarks can be used to implement
+ host-to-host tunnels with kernel-libipsec.
+
- load-tester supports transport mode connections and more complex traffic
selectors, including such using unique ports for each tunnel.
+- The new dnscert plugin provides support for authentication via CERT RRs that
+ are protected via DNSSEC. The plugin was created by Ruslan N. Marchenko.
+
+- The eap-radius plugin supports forwarding of several Cisco Unity specific
+ RADIUS attributes in corresponding configuration payloads.
+
+- Database transactions are now abstracted and implemented by the two backends.
+ If you use MySQL make sure all tables use the InnoDB engine.
+
- libstrongswan now can provide an experimental custom implementation of the
printf family functions based on klibc if neither Vstr nor glibc style printf
hooks are available. This can avoid the Vstr dependency on some systems at
projects / thirdparty / strongswan.git / blobdiff