- Kerberos Version 5, Release 1.3
+ Kerberos Version 5, Release 1.8
- Release Notes
- The MIT Kerberos Team
+ Release Notes
+ The MIT Kerberos Team
-Unpacking the Source Distribution
----------------------------------
+Copyright and Other Notices
+---------------------------
-The source distribution of Kerberos 5 comes in three gzipped tarfiles,
-krb5-1.3.src.tar.gz, krb5-1.3.doc.tar.gz, and krb5-1.3.crypto.tar.gz.
-The krb5-1.3.doc.tar.gz contains the doc/ directory and this README
-file. The krb5-1.3.src.tar.gz contains the src/ directory and this
-README file, except for the crypto library sources, which are in
-krb5-1.3.crypto.tar.gz.
+Copyright (C) 1985-2011 by the Massachusetts Institute of Technology
+and its contributors. All rights reserved.
-Instruction on how to extract the entire distribution follow. These
-directions assume that you want to extract into a directory called
-DIST.
+Please see the file named NOTICE for additional notices.
-If you have the GNU tar program and gzip installed, you can simply do:
+MIT Kerberos is a project of the MIT Kerberos Consortium. For more
+information about the Kerberos Consortium, see http://kerberos.org/
- mkdir DIST
- cd DIST
- gtar zxpf krb5-1.3.src.tar.gz
- gtar zxpf krb5-1.3.crypto.tar.gz
- gtar zxpf krb5-1.3.doc.tar.gz
+For more information about the MIT Kerberos software, see
+ http://web.mit.edu/kerberos/
-If you don't have GNU tar, you will need to get the FSF gzip
-distribution and use gzcat:
-
- mkdir DIST
- cd DIST
- gzcat krb5-1.3.src.tar.gz | tar xpf -
- gzcat krb5-1.3.crypto.tar.gz | tar xpf -
- gzcat krb5-1.3.doc.tar.gz | tar xpf -
-
-Both of these methods will extract the sources into DIST/krb5-1.3/src
-and the documentation into DIST/krb5-1.3/doc.
+People interested in participating in the MIT Kerberos development
+effort should visit http://k5wiki.kerberos.org/
Building and Installing Kerberos 5
----------------------------------
compile and install Kerberos V5 on any platform, you may send mail to
krb5-bugs@mit.edu.
+Please keep in mind that unencrypted e-mail is not secure. If you need
+to report a security vulnerability, or send sensitive information,
+please PGP-encrypt it to krbcore-security@mit.edu.
+
You may view bug reports by visiting
-http://krbdev.mit.edu/rt/
+ http://krbdev.mit.edu/rt/
and logging in as "guest" with password "guest".
-Notes, Major Changes, and Known Bugs for 1.3
---------------------------------------------
-
-* We now install the compile_et program, so other packages can use the
- installed com_err library with their own error tables. (If you use
- our com_err code, that is; see below.)
-
-* The header files we install now assume ANSI/ISO C ('89, not '99).
- We have stopped testing on SunOS 4, even with gcc. Some of our code
- now has C89-based assumptions, like free(NULL) being well defined,
- that will probably frustrate any attempts to run this code under SunOS
- 4 or other pre-C89 systems.
-
-* Some new code, bug fixes, and cleanup for IPv6 support. [[TODO:
- Insert list of (non-)supporting programs and libraries here.]]
-
-* We have upgraded to autoconf 2.52 (or later), and the syntax for
- specifying certain configuration options have changed. For example,
- autoconf 2.52 configure scripts let you specify command-line options
- like "configure CC=/some/path/foo-cc", so we have removed some of
- our old options like --with-cc in favor of this approach.
-
-* The client libraries can now use TCP to connect to the KDC. This
- may be necessary when talking to Microsoft KDCs (domain controllers),
- if they issue you tickets with lots of PAC data.
-
-* If you have versions of the com_err, ss, or Berkeley DB packages
- installed locally, you can use the --with-system-et,
- --with-system-ss, and --with-system-db configure options to use them
- rather than using the versions supplied here. Note that the
- interfaces are assumed to be similar to those we supply; in
- particular, some older, divergent versions of the com_err library
- may not work with the krb5 sources. Many configure-time variables
- can be used to help the compiler and linker find the installed
- packages; see the build documentation for details.
-
-Major changes listed by ticket ID
----------------------------------
-
-* [492] PRNG breakage on 64-bit platforms no longer an issue due to
- new PRNG implementation.
-
-* [523] Client library is now compatible with the RC4-based
- cryptosystem used by Windows 2000.
-
-* [709] krb4 long lifetime support has been implemented.
-
-* [880] krb5_gss_register_acceptor_identity() implemented (is called
- gsskrb5_register_acceptor_identity() by Heimdal).
-
-* [1156, 1209] It is now possible to use the system com_err to build
- this release.
-
-* [1174] TCP support added to client library.
-
-* [1175] TCP support added to the KDC, but is disabled by default.
-
-* [1176] autoconf-2.5x is now required by the build system.
-
-* [1184] It is now possible to use the system Berkeley/Sleepycat DB
- library to build this release.
-
-* [1189, 1251] The KfM krb4 library source base has been merged.
-
-Minor changes listed by ticket ID
----------------------------------
-
-* [90] default_principal_flags documented.
-
-* [175] Docs refer to appropriate example domains/IPs now.
-
-* [433] --includedir honored now.
-
-* [479] unused argument in try_krb4() in login.c deleted.
-
-* [608] login.krb5 handles SIGHUP more sanely now and thus avoids
- getting the session into a weird state w.r.t. job control.
-
-* [620] krb4 encrypted rcp should work a little better now. Thanks to
- Greg Hudson.
-
-* [673] Weird echoing of admin password in kadmin client worked around
- by not using buffered stdio calls to read passwords.
-
-* [677] The build system has been reworked to allow the user to set
- CFLAGS, LDFLAGS, CPPFLAGS, etc. reasonably.
-
-* [680] Related to [673], rewrite krb5_prompter_posix() to no longer
- use longjmp(), thus avoiding some bugs relating to non-restoration
- of terminal settings.
-
-* [697] login.krb5 no longer zeroes out the terminal window size.
-
-* [710] decomp_ticket() in libkrb4 now looks up the local realm name
- more correctly. Thanks to Booker Bense.
-
-* [771] .rconf files are excluded from the release now.
-
-* [850] Berekely DB build is better integrated into the krb5 library
- build process.
-
-* [866] lib/krb5/os/localaddr.c and kdc/network.c use a common source
- for local address enumeration now.
-
-* [919] kdc/network.c problems relating to SIOCGIFCONF have been
- fixed.
-
-* [922] An overflow in the string-to-time conversion routines has been
- fixed.
-
-* [935] des-cbc-md4 now included in default enctypes.
-
-* [953] des3 no longer failing on Windows due to SHA1 implementation
- problems.
-
-* [971] option parsing bugs rendered irrelevant by removal of unused
- gss mechanism.
-
-* [986] Related to [677], problems with the ordering of LDFLAGS
- initialization rendered irrelevant by use of native autoconf
- idioms.
-
-* [992] Related to [677], quirks with --with-cc no longer relevant as
- AC_PROG_CC is used instead now.
-
-* [999] kdc_default_options now honored in gss context initialization.
-
-* [1006] Client library, as well as KDC, now perform reasonable
- sorting of ETYPE-INFO preauthentication data.
-
-* [1055] NULL pointer dereferences in code calling
- krb5_change_password() have been fixed.
-
-* [1063] Initial credentials acquisition failures related to client
- host having a large number of local network interfaces should be
- fixed now.
-
-* [1065, 1225] krb5_get_init_creds_password() should properly warn about
- password expiration.
-
-* [1066] printf() argument mismatches in rpc unit tests fixed.
-
-* [1087] ftpd no longer requires channel bindings, allowing easier use
- of ftp from behind a NAT.
-
-* [1102] gssapi_generic.h should now work with C++.
-
-* [1164] krb5_auth_con_gen_addrs() now properly returns errno instead
- of -1 if getpeername() fails.
-
-* [1178, 1228, 1244, 1246, 1249] Test suite has been stabilized
- somewhat.
-
-* [1188] As part of the modernization of our usage of autoconf,
- AC_CONFIG_FILES is now used instead of passing a list of files to
- AC_OUTPUT.
-
-* [1194] configure will no longer recurse out of the top of the source
- tree when attempting to locate the top of the source tree.
-
-* [1195] Example krb5.conf file modified to include all enctypes
- supported by the release.
-
-* [1211] The ASN.1 code no longer passes (harmless) uninitialized
- values around.
-
-* [1212] libkadm5 now allows for persistent exclusive database locks.
-
-* [1217] krb5_read_password() and des_read_password() are now
- implemented via krb5_prompter_posix().
-
-* [1224] For SAM challenges, omitted optional strings are no longer
- encoded as zero-length strings.
-
-* [1226] Client-side support for SAM hardware-based preauth
- implemented.
-
-* [1232] If the master KDC cannot be resolved, but a slave is
- reachable, the client library now returns the real error from the
- slave rather than the resolution failure from the master. Thanks to
- Ben Cox.
-
-* [1234] Assigned numbers for SAM preauth have been corrected.
- sam-pk-for-sad implementation has been aligned.
-
-* [1237] Profile-sharing optimizations from KfM have been merged.
-
-* [1240] Windows calling conventions for krb5int_c_combine_keys() have
- been aligned.
-
-* [1256] Incorrect sizes passed to memset() in combine_keys()
- operations have been corrected.
-
-* [1260] Client credential lookup now gets new service tickets in
- preference to attempting to use expired ticketes. Thanks to Ben
- Cox.
-
-* [1284] kshd accepts connections by IPv6 now.
-
-* [1292] kvno manpage title fixed.
-
-* [1293] Source files no longer explicitly attempt to declare errno.
-
-* [1304] kadmind4 no longer leaves sa_flags uninitialized.
-
-* [1309] krb5_send_tgs() no longer leaks the storage associated with
- the TGS-REQ.
-
-* [1310] kadm5_get_either() no longer leaks regexp library memory.
-
-* [1311] Output from krb5-config no longer contains spurious uses of
- $(PURE).
-
-* [1346] gss_krb5_ccache_name() no longer attempts to return a pointer
- to freed memory.
-
-* [1356] krb5_gss_accept_sec_context() no longer attempts to validate
- a null credential if one is passed in.
-
-* [1357] krb__get_srvtab_name() no longer leaks memory.
-
-* [1373] Handling of SAM preauth no longer attempts to stuff a size_t
- into an unsigned int.
-
-[ DELETE BEFORE RELEASE ---changes to unreleased code, etc.--- ]
-
-* [1054] KRB-CRED messages for RC4 are encrypted now.
-
-* [1177] krb5-1-2-2-branch merged onto trunk.
-
-* [1193] Punted comment about reworking key storage architecture.
-
-* [1208] install-headers target implemented.
-
-* [1223] asn1_decode_oid, asn1_encode_oid implemented
-
-* [1276] Generated dependencies handle --without-krb4 properly now.
-
-Copyright Notice and Legal Administrivia
-----------------------------------------
-
-Copyright (C) 1985-2003 by the Massachusetts Institute of Technology.
-
-All rights reserved.
-
-Export of this software from the United States of America may require
-a specific license from the United States Government. It is the
-responsibility of any person or organization contemplating export to
-obtain such a license before exporting.
-
-WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
-distribute this software and its documentation for any purpose and
-without fee is hereby granted, provided that the above copyright
-notice appear in all copies and that both that copyright notice and
-this permission notice appear in supporting documentation, and that
-the name of M.I.T. not be used in advertising or publicity pertaining
-to distribution of the software without specific, written prior
-permission. Furthermore if you modify this software you must label
-your software as modified software and not distribute it in such a
-fashion that it might be confused with the original MIT software.
-M.I.T. makes no representations about the suitability of this software
-for any purpose. It is provided "as is" without express or implied
-warranty.
-
-THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-
-Individual source code files are copyright MIT, Cygnus Support,
-OpenVision, Oracle, Sun Soft, FundsXpress, and others.
-
-Project Athena, Athena, Athena MUSE, Discuss, Hesiod, Kerberos, Moira,
-and Zephyr are trademarks of the Massachusetts Institute of Technology
-(MIT). No commercial use of these trademarks may be made without
-prior written permission of MIT.
-
-"Commercial use" means use of a name in a product or other for-profit
-manner. It does NOT prevent a commercial firm from referring to the
-MIT trademarks in order to convey information (although in doing so,
-recognition of their trademark status should be given).
-
-----
-
-The following copyright and permission notice applies to the
-OpenVision Kerberos Administration system located in kadmin/create,
-kadmin/dbutil, kadmin/passwd, kadmin/server, lib/kadm5, and portions
-of lib/rpc:
-
- Copyright, OpenVision Technologies, Inc., 1996, All Rights Reserved
+DES transition
+--------------
- WARNING: Retrieving the OpenVision Kerberos Administration system
- source code, as described below, indicates your acceptance of the
- following terms. If you do not agree to the following terms, do not
- retrieve the OpenVision Kerberos administration system.
+The krb5-1.8 release disables single-DES cryptosystems by default. As
+a result, you may need to add the libdefaults setting
+"allow_weak_crypto = true" to communicate with existing Kerberos
+infrastructures if they do not support stronger ciphers.
+
+The Data Encryption Standard (DES) is widely recognized as weak. The
+krb5-1.7 release contains measures to encourage sites to migrate away
+from using single-DES cryptosystems. Among these is a configuration
+variable that enables "weak" enctypes, which now defaults to "false"
+beginning with krb5-1.8. The krb5-1.8 release includes additional
+measures to ease the transition away from single-DES. These
+additional measures include:
+
+* enctype config enhancements (so you can do "DEFAULT +des", etc.)
+* new API to allow applications (e.g. AFS) to explicitly reenable weak
+ crypto
+* easier kadmin history key changes
+
+Major changes in 1.8.4
+----------------------
+
+This is primarily a bugfix release.
+
+* Fix vulnerabilities:
+ ** KDC uninitialized pointer crash [MITKRB5-SA-2010-006 CVE-2010-1322]
+ ** kpropd denial of service [MITKRB5-SA-2011-001 CVE-2010-4022]
+ ** KDC denial of service attacks [MITKRB5-SA-2011-002
+ CVE-2011-0281 CVE-2011-0282 CVE-2011-0283]
+ ** KDC double-free when PKINIT enabled [MITKRB5-SA-2011-003
+ CVE-2011-0284]
+ ** kadmind frees invalid pointer [MITKRB5-SA-2011-004 CVE-2011-0285]
+
+* Interoperability:
+
+ ** Correctly encrypt GSSAPI forwarded credentials using the session
+ key, not a subkey.
+
+ ** Set NT-SRV-INST on TGS principal names as expected by some
+ Windows Server Domain Controllers.
+
+ ** Don't reject AP-REQ messages if their PAC doesn't validate;
+ suppress the PAC instead.
+
+ ** Correctly validate HMAC-MD5 checksums that use DES keys
+
+krb5-1.8.4 changes by ticket ID
+-------------------------------
+
+6701 syntax error in src/plugins/kdb/ldap/libkdb_ldap/kerberos.ldif
+6764 has_mandatory_for_kdc_authdata checks only first authdata element
+6768 GSSAPI forwarded credentials must be encrypted in session key
+6790 skip invalid enctypes instead of erroring out in
+ krb5_dbe_def_search_enctype
+6797 CVE-2010-1322 KDC uninitialized pointer crash in authorization
+ data handling (MITKRB5-SA-2010-006)
+6798 set NT-SRV-INST on TGS principal names
+6833 SA-2010-007 Checksum vulnerabilities (CVE-2010-1324 and others)
+6843 handle MS PACs that lack server checksum
+6853 Make gss_krb5_set_allowable_enctypes work for the acceptor (1.8 pullup)
+6861 kpropd denial of service [MITKRB5-SA-2011-001 CVE-2010-4022]
+6862 KDC denial of service attacks [MITKRB5-SA-2011-002
+ CVE-2011-0281 CVE-2011-0282]
+6876 hmac-md5 checksum doesn't work with DES keys
+6877 Don't reject AP-REQs based on PACs
+6882 KDC double-free when PKINIT enabled [MITKRB5-SA-2011-003 CVE-2011-0284]
+6900 kadmind frees invalid pointer [MITKRB5-SA-2011-004 CVE-2011-0285]
+
+Major changes in 1.8.3
+----------------------
+
+* Behavior Change:
+
+ GSS-API context expiration -- the gss_wrap and gss_unwrap
+ functions no longer check for ticket expiration. Applications
+ wishing to enforce ticket lifetimes should check using the
+ gss_inquire_context function. The previous behavior of checking
+ for ticket expiration produced results that were not expected by
+ application developers, and could lead to poor user experience.
+
+* Fix an interoperability issue when the Microsoft HMAC-MD5 checksum
+ type was used with non-RC4 keys.
+
+* Fix an interoperability issue with ephemeral Diffie-Hellman key
+ exchange in PKINIT that would happen for less than 1% of
+ transactions.
+
+krb5-1.8.3 changes by ticket ID
+-------------------------------
+
+6345 no kdb5_util stash equivalent with LDAP database
+6738 PKINIT DH exchange occasionally produces mismatch
+6739 Behavior change: gssapi context expiration
+6740 kadmin ktadd may display wrong name of default keytab
+6744 only test t_locate_kdc if known-good DNS name is present
+6745 Add correct error table when initializing gss-krb5
+6750 krb5kdc doesn't parse the -P command-line option correctly
+6751 Allow Microsoft HMAC-MD5 checksum types to use non-RC4 keys
+
+Major changes in 1.8.2
+----------------------
+
+This is primarily a bugfix release.
+
+* Fix vulnerabilities:
+ ** CVE-2010-1320 KDC double free caused by ticket renewal
+ (MITKRB5-SA-2010-004)
+ ** CVE-2010-1321 GSS-API lib null pointer deref (MITKRB5-SA-2010-005)
+
+* Allow numeric IPv6 addresses for configuring KDC locations.
+
+krb5-1.8.2 changes by ticket ID
+-------------------------------
- You may freely use and distribute the Source Code and Object Code
- compiled from it, with or without modification, but this Source
- Code is provided to you "AS IS" EXCLUSIVE OF ANY WARRANTY,
- INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY OR
- FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER WARRANTY, WHETHER
- EXPRESS OR IMPLIED. IN NO EVENT WILL OPENVISION HAVE ANY LIABILITY
- FOR ANY LOST PROFITS, LOSS OF DATA OR COSTS OF PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES, OR FOR ANY SPECIAL, INDIRECT, OR
- CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, INCLUDING,
- WITHOUT LIMITATION, THOSE RESULTING FROM THE USE OF THE SOURCE
- CODE, OR THE FAILURE OF THE SOURCE CODE TO PERFORM, OR FOR ANY
- OTHER REASON.
+6562 kinit not working if kdc is configured with numerical IPv6 address
+6696 gss_accept_sec_context doesn't produce error tokens
+6697 segfault caused by dlerror returning NULL
+6698 kproplog displays incorrect iprop timestamps on 64-bit platforms
+6702 CVE-2010-1320 KDC double free caused by ticket renewal
+ (MITKRB5-SA-2010-004)
+6711 memory leak in process_tgs_req in r23724
+6718 Make KADM5_FAIL_AUTH_COUNT_INCREMENT more robust with LDAP
+6722 Error handling bug in krb5_init_creds_init()
+6725 CVE-2010-1321 GSS-API lib null pointer deref (MITKRB5-SA-2010-005)
+6726 SPNEGO doesn't interoperate with Windows 2000
+6730 kdc_tcp_ports not documented in kdc.conf.M
+6734 FAST negotiation could erroneously succeed
- OpenVision retains all copyrights in the donated Source Code. OpenVision
- also retains copyright to derivative works of the Source Code, whether
- created by OpenVision or by a third party. The OpenVision copyright
- notice must be preserved if derivative works are made based on the
- donated Source Code.
+Major changes in 1.8.1
+----------------------
- OpenVision Technologies, Inc. has donated this Kerberos
- Administration system to MIT for inclusion in the standard
- Kerberos 5 distribution. This donation underscores our
- commitment to continuing Kerberos technology development
- and our gratitude for the valuable work which has been
- performed by MIT and the Kerberos community.
+This is primarily a bugfix release.
-----
+* MITKRB5-SA-2010-002 CVE-2010-0628 denial of service in SPNEGO
- Portions contributed by Matt Crawford <crawdad@fnal.gov> were
- work performed at Fermi National Accelerator Laboratory, which is
- operated by Universities Research Association, Inc., under
- contract DE-AC02-76CHO3000 with the U.S. Department of Energy.
+* Support IPv6 in kpasswd client.
----- The implementation of the Yarrow pseudo-random number generator
-in src/lib/crypto/yarrow has the following copyright:
+* Fix an authorization data type number assignment that conflicted
+ with an undocumented Microsoft usage.
-Copyright 2000 by Zero-Knowledge Systems, Inc.
-
-Permission to use, copy, modify, distribute, and sell this software
-and its documentation for any purpose is hereby granted without fee,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Zero-Knowledge Systems,
-Inc. not be used in advertising or publicity pertaining to
-distribution of the software without specific, written prior
-permission. Zero-Knowledge Systems, Inc. makes no representations
-about the suitability of this software for any purpose. It is
-provided "as is" without express or implied warranty.
-
-ZERO-KNOWLEDGE SYSTEMS, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO
-THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS, IN NO EVENT SHALL ZERO-KNOWLEDGE SYSTEMS, INC. BE LIABLE FOR
-ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION, ARISING OUT
-OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
----- The implementation of the AES encryption algorithm in
-src/lib/crypto/aes has the following copyright:
-
- Copyright (c) 2001, Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK.
- All rights reserved.
-
- LICENSE TERMS
-
- The free distribution and use of this software in both source and binary
- form is allowed (with or without changes) provided that:
+krb5-1.8.1 changes by ticket ID
+-------------------------------
- 1. distributions of this source code include the above copyright
- notice, this list of conditions and the following disclaimer;
-
- 2. distributions in binary form include the above copyright
- notice, this list of conditions and the following disclaimer
- in the documentation and/or other associated materials;
-
- 3. the copyright holder's name is not used to endorse products
- built using this software without specific written permission.
-
- DISCLAIMER
+6661 [RFE] properly support IPv6 in kpasswd
+6668 Two problems in kadm5_get_principal mask handling
+6674 memory leak in SPNEGO
+6676 Ignore improperly encoded signedpath AD elements
+6678 use of freed memory in gss_import_sec_context error path
+6680 the "ticket_lifetime" setting isn't documented
+6681 krb5_get_init_creds_password() can crash with NULL options and
+ expired keys
+6683 kpasswd doesn't guess the client principal name correctly
+ without a ccache
+6685 handle NT_SRV_INST in service principal referrals
+6687 Change KRB5_AUTHDATA_SIGNTICKET from 142 to 512
+6689 krb5_typed_data not castable to krb5_pa_data on 64-bit MacOSX
+6690 MITKRB5-SA-2010-002 CVE-2010-0628 denial of service in SPNEGO
+6693 Fix backwards flag output in krb5_init_creds_step()
- This software is provided 'as is' with no explcit or implied warranties
- in respect of any properties, including, but not limited to, correctness
- and fitness for purpose.
+Major changes in 1.8
+--------------------
+The krb5-1.8 release contains a large number of changes, featuring
+improvements in the following broad areas:
+* Code quality
+* Developer experience
+* Performance
+* End-user experience
+* Administrator experience
+* Protocol evolution
+
+Code quality:
+
+* Move toward test-driven development -- new features have test code,
+ or at least written testing procedures.
+
+* Remove applications to a separate distribution to simplify
+ independent maintenance.
+
+* Increase conformance to coding style
+
+ + "The great reindent"
+
+ + Selective refactoring
+
+Developer experience:
+
+* Crypto modularity -- vendors can more easily substitute their own
+ crypto implementations, which might be hardware-accelerated or
+ validated to FIPS 140, for the builtin crypto implementation that
+ has historically shipped as part of MIT Kerberos. Currently, only
+ an OpenSSL provider is included, but others are planned for the
+ future.
+
+* Move toward improved KDB interface
+
+* Improved API for verifying and interrogating authorization data
+
+Performance:
+
+* Investigate and remedy repeatedly-reported performance bottlenecks.
+
+* Encryption performance -- new crypto API with opaque key structures,
+ to allow for optimizations such as caching of derived keys
+
+End-user experience:
+
+* Reduce DNS dependence by implementing an interface that allows
+ client library to track whether a KDC supports service principal
+ referrals.
+
+Administrator experience:
+
+* Disable DES by default -- this reduces security exposure from using
+ an increasingly insecure cipher.
+
+* More versatile crypto configuration, to simplify migration away from
+ DES -- new configuration syntax to allow inclusion and exclusion of
+ specific algorithms relative to a default set.
+
+* Account lockout for repeated login failures -- mitigates online
+ password guessing attacks, and helps with some enterprise regulatory
+ compliance.
+
+* Bridge layer to allow Heimdal HDB modules to act as KDB backend
+ modules. This provides a migration path from a Heimdal to an MIT
+ KDC.
+
+Protocol evolution:
+
+* FAST enhancements -- preauthentication framework enhancements to
+ allow a client to securely negotiate the use of FAST with a KDC of
+ unknown capabilities.
+
+* Microsoft Services for User (S4U) compatibility: S4U2Self, also
+ known as "protocol transition", allows for service to ask a KDC for
+ a ticket to themselves on behalf of a client authenticated via a
+ different means; S4U2Proxy allows a service to ask a KDC for a
+ ticket to another service on behalf of a client.
+
+* Anonymous PKINIT -- allows the use of public-key cryptography to
+ anonymously authenticate to a realm
+
+* Support doing constrained delegation similar to Microsoft's
+ S4U2Proxy without the use of the Windows PAC. This functionality
+ uses a protocol compatible with Heimdal.
+
+krb5-1.8 changes by ticket ID
+-----------------------------
+
+5468 delete kadmin v1 support
+6206 new API for storing extra per-principal data in ccache
+6434 krb5_cc_resolve() will crash if a null name param is provided
+6454 Make krb5_mkt_resolve error handling work
+6510 Restore limited support for static linking
+6539 Enctype list configuration enhancements
+6546 KDB should use enctype of stashed master key
+6547 Modify kadm5 initializers to accept krb5 contexts
+6563 Implement s4u extensions
+6564 s4u extensions integration broke test suite...
+6565 HP-UX IA64 wrong endian
+6572 Implement GSS naming extensions and authdata verification
+6576 Implement new APIs to allow improved crypto performance
+6577 Account lockout for repeated login failures
+6578 Heimdal DB bridge plugin for KDC back end
+6580 Constrained delegation without PAC support
+6582 Memory leak in _kadm5_init_any introduced with ipropd
+6583 Unbundle applications into separate repository
+6586 libkrb5 support for non-blocking AS requests
+6590 allow testing even if name->addr->name mapping doesn't work
+6591 fix slow behavior on Mac OS X with link-local addresses
+6592 handle negative enctypes better
+6593 Remove dependency on /bin/csh in test suite
+6595 FAST (preauth framework) negotiation
+6597 Add GSS extensions to store credentials, generate random bits
+6598 gss_init_sec_context potential segfault
+6599 memory leak in krb5_rd_req_decrypt_tkt_part
+6600 gss_inquire_context cannot handle no target name from mechanism
+6601 gsssspi_set_cred_option cannot handle mech specific option
+6603 issues with SPNEGO
+6605 PKINIT client should validate SAN for TGS, not service principal
+6606 allow testing when offline
+6607 anonymous PKINIT
+6616 Fix spelling and hyphen errors in man pages
+6618 Support optional creation of PID files for krb5kdc and kadmind
+6620 kdc_supported_enctypes does nothing; eradicate mentions thereof
+6621 disable weak crypto by default
+6622 kinit_fast fails if weak enctype is among client principal keys
+6623 Always treat anonymous as preauth required
+6624 automated tests for anonymous pkinit
+6625 yarrow code does not initialize keyblock enctype and uses
+ unitialized value
+6626 Restore interoperability with 1.6 addprinc -randkey
+6627 Set enctype in crypto_tests to prevent memory leaks
+6628 krb5int_dk_string_to_key fails to set enctype
+6629 krb5int_derive_key results in cache with uninitialized values
+6630 krb5int_pbkdf2_hmac_sha1 fails to set enctype on keyblock
+6632 Simplify and fix FAST check for keyed checksum type
+6634 Use keyed checksum type for DES FAST
+6640 Make history key exempt from permitted_enctypes
+6642 Add test program for decryption of overly short buffers
+6643 Problem with krb5 libcom_err vs. system libcom_err
+6644 Change basename of libkadm5 libraries to avoid Heimdal conflict
+6645 Add krb5_allow_weak_crypto API
+6648 define MIN() in lib/gssapi/krb5/prf.c
+6649 Get rid of kdb_ext.h and allow out-of-tree KDB plugins
+6651 Handle migration from pre-1.7 databases with master key
+ kvno != 1 (1.8 pullup)
+6652 Make decryption of master key list more robust
+6653 set_default_enctype_var should filter not reject weak enctypes
+6654 Fix greet_server build
+6655 Fix cross-realm handling of AD-SIGNEDPATH
+6656 krb5int_fast_free_state segfaults if state is null
+6657 enc_padata can include empty sequence
+6658 Implement gss_set_neg_mechs
+6659 Additional memory leaks in kdc
+6660 Minimal support for updating history key
+6662 MITKRB5-SA-2010-001 CVE-2010-0283 KDC denial of service
+6663 update mkrel to deal with changed source layout
+6665 Fix cipher state chaining in OpenSSL back end
+6669 doc updates for allow_weak_crypto
Acknowledgements
----------------
-Appreciation Time!!!! There are far too many people to try to thank
-them all; many people have contributed to the development of Kerberos
-V5. This is only a partial listing....
-
-Thanks to Paul Vixie and the Internet Software Consortium for funding
-the work of Barry Jaspan. This funding was invaluable for the OV
-administration server integration, as well as the 1.0 release
-preparation process.
-
-Thanks to John Linn, Scott Foote, and all of the folks at OpenVision
-Technologies, Inc., who donated their administration server for use in
-the MIT release of Kerberos.
-
-Thanks to Jeff Bigler, Mark Eichin, Marc Horowitz, Nancy Gilman, Ken
-Raeburn, and all of the folks at Cygnus Support, who provided
-innumerable bug fixes and portability enhancements to the Kerberos V5
-tree. Thanks especially to Jeff Bigler, for the new user and system
-administrator's documentation.
-
-Thanks to Doug Engert from ANL for providing many bug fixes, as well
-as testing to ensure DCE interoperability.
-
-Thanks to Ken Hornstein at NRL for providing many bug fixes and
-suggestions, and for working on SAM preauthentication.
-
-Thanks to Matt Crawford at FNAL for bugfixes and enhancements.
-
-Thanks to Sean Mullan and Bill Sommerfeld from Hewlett Packard for
-their many suggestions and bug fixes.
-
-Thanks to Nalin Dahyabhai of RedHat and Chris Evans for locating and
-providing patches for numerous buffer overruns.
-
-Thanks to Christopher Thompson and Marcus Watts for discovering the
-ftpd security bug.
-
-Thanks to the members of the Kerberos V5 development team at MIT, both
-past and present: Danilo Almeida, Jay Berkenbilt, Richard Basch, Mitch
-Berger, John Carr, Don Davis, Alexandra Ellwood, Nancy Gilman, Matt
-Hancher, Sam Hartman, Paul Hill, Marc Horowitz, Eva Jacobus, Miroslav
-Jurisic, Barry Jaspan, Geoffrey King, John Kohl, Peter Litwack, Scott
-McGuire, Kevin Mitchell, Cliff Neuman, Paul Park, Ezra Peisach, Chris
-Provenzano, Ken Raeburn, Jon Rochlis, Jeff Schiller, Jen Selby, Brad
-Thompson, Harry Tsai, Ted Ts'o, Marshall Vale, Tom Yu.
+Past and present Sponsors of the MIT Kerberos Consortium:
+
+ Apple
+ Carnegie Mellon University
+ Centrify Corporation
+ Columbia University
+ Cornell University
+ The Department of Defense of the United States of America (DoD)
+ Google
+ Iowa State University
+ MIT
+ Michigan State University
+ Microsoft
+ The National Aeronautics and Space Administration
+ of the United States of America (NASA)
+ Network Appliance (NetApp)
+ Nippon Telephone and Telegraph (NTT)
+ Oracle
+ Pennsylvania State University
+ Red Hat
+ Stanford University
+ TeamF1, Inc.
+ The University of Alaska
+ The University of Michigan
+ The University of Pennsylvania
+
+Past and present members of the Kerberos Team at MIT:
+
+ Danilo Almeida
+ Jeffrey Altman
+ Justin Anderson
+ Richard Basch
+ Mitch Berger
+ Jay Berkenbilt
+ Andrew Boardman
+ Bill Bryant
+ Steve Buckley
+ Joe Calzaretta
+ John Carr
+ Mark Colan
+ Don Davis
+ Alexandra Ellwood
+ Dan Geer
+ Nancy Gilman
+ Matt Hancher
+ Thomas Hardjono
+ Sam Hartman
+ Paul Hill
+ Marc Horowitz
+ Eva Jacobus
+ Miroslav Jurisic
+ Barry Jaspan
+ Geoffrey King
+ Kevin Koch
+ John Kohl
+ HaoQi Li
+ Peter Litwack
+ Scott McGuire
+ Steve Miller
+ Kevin Mitchell
+ Cliff Neuman
+ Paul Park
+ Ezra Peisach
+ Chris Provenzano
+ Ken Raeburn
+ Jon Rochlis
+ Jeff Schiller
+ Jen Selby
+ Robert Silk
+ Bill Sommerfeld
+ Jennifer Steiner
+ Ralph Swick
+ Brad Thompson
+ Harry Tsai
+ Zhanna Tsitkova
+ Ted Ts'o
+ Marshall Vale
+ Tom Yu
+
+The following external contributors have provided code, patches, bug
+reports, suggestions, and valuable resources:
+
+ Brandon Allbery
+ Russell Allbery
+ Brian Almeida
+ Michael B Allen
+ Derek Atkins
+ David Bantz
+ Alex Baule
+ Arlene Berry
+ Jeff Blaine
+ Radoslav Bodo
+ Emmanuel Bouillon
+ Michael Calmer
+ Julien Chaffraix
+ Ravi Channavajhala
+ Srinivas Cheruku
+ Leonardo Chiquitto
+ Howard Chu
+ Andrea Cirulli
+ Christopher D. Clausen
+ Kevin Coffman
+ Simon Cooper
+ Sylvain Cortes
+ Nalin Dahyabhai
+ Dennis Davis
+ Roland Dowdeswell
+ Jason Edgecombe
+ Mark Eichin
+ Shawn M. Emery
+ Douglas E. Engert
+ Peter Eriksson
+ Ronni Feldt
+ Bill Fellows
+ JC Ferguson
+ William Fiveash
+ Ákos Frohner
+ Marcus Granado
+ Scott Grizzard
+ Helmut Grohne
+ Steve Grubb
+ Philip Guenther
+ Dominic Hargreaves
+ Jakob Haufe
+ Jeff Hodges
+ Love Hörnquist Åstrand
+ Ken Hornstein
+ Henry B. Hotz
+ Luke Howard
+ Jakub Hrozek
+ Shumon Huque
+ Jeffrey Hutzelman
+ Wyllys Ingersoll
+ Holger Isenberg
+ Pavel Jindra
+ Joel Johnson
+ Mikkel Kruse
+ Volker Lendecke
+ Jan iankko Lieskovsky
+ Kevin Longfellow
+ Ryan Lynch
+ Cameron Meadors
+ Franklyn Mendez
+ Markus Moeller
+ Paul Moore
+ Keiichi Mori
+ Zbysek Mraz
+ Edward Murrell
+ Nikos Nikoleris
+ Felipe Ortega
+ Dmitri Pal
+ Javier Palacios
+ Ezra Peisach
+ W. Michael Petullo
+ Mark Phalan
+ Robert Relyea
+ Martin Rex
+ Jason Rogers
+ Mike Roszkowski
+ Guillaume Rousse
+ Tom Shaw
+ Peter Shoults
+ Simo Sorce
+ Michael Spang
+ Michael Ströder
+ Bjørn Tore Sund
+ Rathor Vipin
+ Jorgen Wahlsten
+ Max (Weijun) Wang
+ John Washington
+ Marcus Watts
+ Simon Wilkinson
+ Nicolas Williams
+ Ross Wilper
+ Xu Qiang
+ Hanz van Zijst
+
+The above is not an exhaustive list; many others have contributed in
+various ways to the MIT Kerberos development effort over the years.
+Other acknowledgments (for bug reports and patches) are in the
+doc/CHANGES file.
projects / krb5.git / blobdiff