1 NOTE: We are looking for help with a few things:
2 https://github.com/libexpat/libexpat/labels/help%20wanted
3 If you can help, please get in touch. Thanks!
5 Release 2.2.4 Sat Auguest 19 2017
7 #115 Fix copying of partial characters for UTF-8 input
10 #109 Fix "make check" for non-x86 architectures that default
11 to unsigned type char (-128..127 rather than 0..255)
12 #109 coverage.sh: Cover -funsigned-char
13 Autotools: Introduce --without-xmlwf argument
14 #65 Autotools: Replace handwritten Makefile with GNU Automake
15 #43 CMake: Auto-detect high quality entropy extractors, add new
16 option USE_libbsd=ON to use arc4random_buf of libbsd
17 #74 CMake: Add -fno-strict-aliasing only where supported
18 #114 CMake: Always honor manually set BUILD_* options
19 #114 CMake: Compile man page if docbook2x-man is available, only
20 #117 Include file tests/xmltest.log.expected in source tarball
21 (required for "make run-xmltest")
22 #117 Include (existing) Visual Studio 2013 files in source tarball
23 Improve test suite error output
24 #111 Fix some typos in documentation
25 Version info bumped from 7:5:6 to 7:6:6
33 Release 2.2.3 Wed August 2 2017
35 #82 CVE-2017-11742 -- Windows: Fix DLL hijacking vulnerability
36 using Steve Holme's LoadLibrary wrapper for/of cURL
39 #85 Fix a dangling pointer issue related to realloc
42 Increase code coverage
43 #91 Linux: Allow getrandom to fail if nonblocking pool has not
44 yet been initialized and read /dev/urandom then, instead.
45 This is in line with what recent Python does.
46 #81 Pre-10.7/Lion macOS: Support entropy from arc4random
47 #86 Check that a UTF-16 encoding in an XML declaration has the
49 #4 #5 #7 Recover correctly when some reallocations fail
50 Repair "./configure && make" for systems without any
51 provider of high quality entropy
52 and try reading /dev/urandom on those
53 Ensure that user-defined character encodings have converter
54 functions when they are needed
55 Fix mis-leading description of argument -c in xmlwf.1
56 Rely on macro HAVE_ARC4RANDOM_BUF (rather than __CloudABI__)
58 #100 Fix use of SIPHASH_MAIN in siphash.h
59 #23 Test suite: Fix memory leaks
60 Version info bumped from 7:4:6 to 7:5:6
71 Core Infrastructure Initiative
73 Release 2.2.2 Wed July 12 2017
75 #43 Protect against compilation without any source of high
76 quality entropy enabled, e.g. with CMake build system;
77 commit ff0207e6076e9828e536b8d9cd45c9c92069b895
78 #60 Windows with _UNICODE:
79 Unintended use of LoadLibraryW with a non-wide string
80 resulted in failure to load advapi32.dll and degradation
81 in quality of used entropy when compiled with _UNICODE for
82 Windows; you can launch existing binaries with
83 EXPAT_ENTROPY_DEBUG=1 in the environment to inspect the
84 quality of entropy used during runtime; commits
85 * 95b95032f907ef1cd17ee7a9a1768010a825d61d
86 * 73a5a2e9c081f49f2d775cf7ced864158b68dc80
87 [MOX-006] Fix non-NULL parser parameter validation in XML_Parse;
88 resulted in NULL dereference, previously;
89 commit ac256dafdffc9622ab0dc2c62fcecb0dfcfa71fe
92 #69 Fix improper use of unsigned long long integer literals
95 #73 Start requiring a C99 compiler
96 #49 Fix "==" Bashism in configure script
97 #50 Fix too eager getrandom detection for Debian GNU/kFreeBSD
99 #51 Address lack of stdint.h in Visual Studio 2003 to 2008
100 #58 Address compile warnings
101 #68 Fix "./buildconf.sh && ./configure" for some versions
103 #72 CMake: Ease use of Expat in context of a parent project
104 with multiple CMakeLists.txt files
105 #72 CMake: Resolve mistaken executable permissions
106 #76 Address compile warning with -DNDEBUG (not recommended!)
107 #77 Address compile warning about macro redefinition
121 Radically Open Security
123 Release 2.2.1 Sat June 17 2017
125 CVE-2017-9233 -- External entity infinite loop DoS
126 Details: https://libexpat.github.io/doc/cve-2017-9233/
127 Commit c4bf96bb51dd2a1b0e185374362ee136fe2c9d7f
128 [MOX-002] CVE-2016-9063 -- Detect integer overflow; commit
129 d4f735b88d9932bd5039df2335eefdd0723dbe20
130 (Fixed version of existing downstream patches!)
131 (SF.net) #539 Fix regression from fix to CVE-2016-0718 cutting off
132 longer tag names; commits
133 * 896b6c1fd3b842f377d1b62135dccf0a579cf65d
134 * af507cef2c93cb8d40062a0abe43a4f4e9158fb2
135 #16 * 0dbbf43fdb20f593ddf4fa1ff67288000dd4a7fd
136 #25 More integer overflow detection (function poolGrow); commits
137 * 810b74e4703dcfdd8f404e3cb177d44684775143
138 * 44178553f3539ce69d34abee77a05e879a7982ac
139 [MOX-002] Detect overflow from len=INT_MAX call to XML_Parse; commits
140 * 4be2cb5afcc018d996f34bbbce6374b7befad47f
141 * 7e5b71b748491b6e459e5c9a1d090820f94544d8
142 [MOX-005] #30 Use high quality entropy for hash initialization:
143 * arc4random_buf on BSD, systems with libbsd
144 (when configured with --with-libbsd), CloudABI
145 * RtlGenRandom on Windows XP / Server 2003 and later
146 * getrandom on Linux 3.17+
147 In a way, that's still part of CVE-2016-5300.
148 https://github.com/libexpat/libexpat/pull/30/commits
149 [MOX-005] For the low quality entropy extraction fallback code,
150 the parser instance address can no longer leak, commit
151 04ad658bd3079dd15cb60fc67087900f0ff4b083
152 [MOX-003] Prevent use of uninitialised variable; commit
153 [MOX-004] a4dc944f37b664a3ca7199c624a98ee37babdb4b
154 Add missing parameter validation to public API functions
155 and dedicated error code XML_ERROR_INVALID_ARGUMENT:
156 [MOX-006] * NULL checks; commits
157 * d37f74b2b7149a3a95a680c4c4cd2a451a51d60a (merge/many)
158 * 9ed727064b675b7180c98cb3d4f75efba6966681
159 * 6a747c837c50114dfa413994e07c0ba477be4534
160 * Negative length (XML_Parse); commit
161 [MOX-002] 70db8d2538a10f4c022655d6895e4c3e78692e7f
162 [MOX-001] #35 Change hash algorithm to William Ahern's version of SipHash
163 to go further with fixing CVE-2012-0876.
164 https://github.com/libexpat/libexpat/pull/39/commits
167 #32 Fix sharing of hash salt across parsers;
168 relevant where XML_ExternalEntityParserCreate is called
169 prior to XML_Parse, in particular (e.g. FBReader)
170 #28 xmlwf: Auto-disable use of memory-mapping (and parsing
171 as a single chunk) for files larger than ~1 GB (2^30 bytes)
172 rather than failing with error "out of memory"
173 #3 Fix double free after malloc failure in DTD code; commit
174 7ae9c3d3af433cd4defe95234eae7dc8ed15637f
175 #17 Fix memory leak on parser error for unbound XML attribute
176 prefix with new namespaces defined in the same tag;
177 found by Google's OSS-Fuzz; commits
178 * 16f87daae5a16132e479e4f71862128c7a915c73
179 * b47dbc9745932c160893d433220e462bd605f8cd
180 xmlwf on Windows: Add missing calls to CloseHandle
183 #30 Introduced environment switch EXPAT_ENTROPY_DEBUG=1
184 for runtime debugging of entropy extraction
187 Increase code coverage
188 #33 Reject use of XML_UNICODE_WCHAR_T with sizeof(wchar_t) != 2;
189 XML_UNICODE_WCHAR_T was never meant to be used outside
190 of Windows; 4-byte wchar_t is common on Linux
191 (SF.net) #538 Start using -fno-strict-aliasing
192 (SF.net) #540 Support compilation against cloudlibc of CloudABI
193 Allow MinGW cross-compilation
194 (SF.net) #534 CMake: Introduce option "BUILD_doc" (enabled by default)
195 to bypass compilation of the xmlwf.1 man page
196 (SF.net) pr2 CMake: Introduce option "INSTALL" (enabled by default)
197 to bypass installation of expat files
198 CMake: Fix ninja support
199 Autotools: Add parameters --enable-xml-context [COUNT]
200 and --disable-xml-context; default of context of 1024
201 bytes enabled unchanged
202 #14 Drop AmigaOS 4.x code and includes
203 #14 Drop ancient build systems:
204 * Borland C++ Builder
208 * Pre-X Mac OS (MPW Makefile)
209 If you happen to rely on some of these, please get in
210 touch for joining with maintenance.
211 #10 Move from WIN32 to _WIN32
212 #13 Fix "make run-xmltest" order instability
213 Address compile warnings
214 Bump version info from 7:2:6 to 7:3:6
218 #1 Migrate from SourceForge to GitHub (except downloads):
219 https://github.com/libexpat/
220 #1 Re-create http://libexpat.org/ project website
221 Start utilizing Travis CI
234 Core Infrastructure Initiative
235 Mozilla Foundation (MOSS Track 3: Secure Open Source)
236 Radically Open Security
238 Release 2.2.0 Tue June 21 2016
240 #537 CVE-2016-0718 -- Fix crash on malformed input
241 CVE-2016-4472 -- Improve insufficient fix to CVE-2015-1283 /
242 CVE-2015-2716 introduced with Expat 2.1.1
243 #499 CVE-2016-5300 -- Use more entropy for hash initialization
244 than the original fix to CVE-2012-0876
245 #519 CVE-2012-6702 -- Resolve troublesome internal call to srand
246 that was introduced with Expat 2.1.0
247 when addressing CVE-2012-0876 (issue #496)
250 Fix uninitialized reads of size 1
251 (e.g. in little2_updatePosition)
252 Fix detection of UTF-8 character boundaries
255 #532 Fix compilation for Visual Studio 2010 (keyword "C99")
256 Autotools: Resolve use of "$<" to better support bmake
257 Autotools: Add QA script "qa.sh" (and make target "qa")
258 Autotools: Respect CXXFLAGS if given
259 Autotools: Fix "make run-xmltest"
260 Autotools: Have "make run-xmltest" check for expected output
261 p90 CMake: Fix static build (BUILD_shared=OFF) on Windows
262 #536 CMake: Add soversion, support -DNO_SONAME=yes to bypass
263 #323 CMake: Add suffix "d" to differentiate debug from release
264 CMake: Define WIN32 with CMake on Windows
265 Annotate memory allocators for GCC
266 Address all currently known compile warnings
267 Make sure that API symbols remain visible despite
269 Remove executable flag from source files
270 Resolve COMPILED_FROM_DSP in favor of WIN32
287 Release 2.1.1 Sat March 12 2016
289 #582: CVE-2015-1283 - Multiple integer overflows in XML_GetBuffer
292 #502: Fix potential null pointer dereference
293 #520: Symbol XML_SetHashSalt was not exported
294 Output of "xmlwf -h" was incomplete
297 #503: Document behavior of calling XML_SetHashSalt with salt 0
298 Minor improvements to man page xmlwf(1)
299 Improvements to the experimental CMake build system
300 libtool now invoked with --verbose
302 Release 2.1.0 Sat March 24 2012
304 #2958794: CVE-2012-1148 - Memory leak in poolGrow.
305 #2895533: CVE-2012-1147 - Resource leak in readfilemap.c.
306 #3496608: CVE-2012-0876 - Hash DOS attack.
307 #2894085: CVE-2009-3560 - Buffer over-read and crash in big2_toUtf8().
308 #1990430: CVE-2009-3720 - Parser crash with special UTF-8 sequences.
310 #1742315: Harmful XML_ParserCreateNS suggestion.
311 #1785430: Expat build fails on linux-amd64 with gcc version>=4.1 -O3.
312 #1983953, 2517952, 2517962, 2649838:
313 Build modifications using autoreconf instead of buildconf.sh.
314 #2815947, #2884086: OBJEXT and EXEEXT support while building.
315 #2517938: xmlwf should return non-zero exit status if not well-formed.
316 #2517946: Wrong statement about XMLDecl in xmlwf.1 and xmlwf.sgml.
317 #2855609: Dangling positionPtr after error.
318 #2990652: CMake support.
319 #3010819: UNEXPECTED_STATE with a trailing "%" in entity value.
320 #3206497: Uninitialized memory returned from XML_Parse.
321 #3287849: make check fails on mingw-w64.
323 #1749198: pkg-config support.
324 #3010222: Fix for bug #3010819.
325 #3312568: CMake support.
326 #3446384: Report byte offsets for attr names and values.
327 - New Features / API changes:
328 Added new API member XML_SetHashSalt() that allows setting an initial
329 value (salt) for hash calculations. This is part of the fix for
330 bug #3496608 to randomize hash parameters.
331 When compiled with XML_ATTR_INFO defined, adds new API member
332 XML_GetAttributeInfo() that allows retrieving the byte
333 offsets for attribute names and values (patch #3446384).
334 Added CMake build system.
335 See bug #2990652 and patch #3312568.
336 Added run-benchmark target to Makefile.in - relies on testdata module
337 present in the same relative location as in the repository.
339 Release 2.0.1 Tue June 5 2007
340 - Fixed bugs #1515266, #1515600: The character data handler's calling
341 of XML_StopParser() was not handled properly; if the parser was
342 stopped and the handler set to NULL, the parser would segfault.
343 - Fixed bug #1690883: Expat failed on EBCDIC systems as it assumed
344 some character constants to be ASCII encoded.
345 - Minor cleanups of the test harness.
346 - Fixed xmlwf bug #1513566: "out of memory" error on file size zero.
347 - Fixed outline.c bug #1543233: missing a final XML_ParserFree() call.
348 - Fixes and improvements for Windows platform:
349 bugs #1409451, #1476160, #1548182, #1602769, #1717322.
350 - Build fixes for various platforms:
351 HP-UX, Tru64, Solaris 9: patch #1437840, bug #1196180.
352 All Unix: #1554618 (refreshed config.sub/config.guess).
353 #1490371, #1613457: support both, DESTDIR and INSTALL_ROOT,
354 without relying on GNU-Make specific features.
355 #1647805: Patched configure.in to work better with Intel compiler.
356 - Fixes to Makefile.in to have make check work correctly:
357 bugs #1408143, #1535603, #1536684.
358 - Added Open Watcom support: patch #1523242.
360 Release 2.0.0 Wed Jan 11 2006
361 - We no longer use the "check" library for C unit testing; we
362 always use the (partial) internal implementation of the API.
363 - Report XML_NS setting via XML_GetFeatureList().
364 - Fixed headers for use from C++.
365 - XML_GetCurrentLineNumber() and XML_GetCurrentColumnNumber()
366 now return unsigned integers.
367 - Added XML_LARGE_SIZE switch to enable 64-bit integers for
368 byte indexes and line/column numbers.
369 - Updated to use libtool 1.5.22 (the most recent).
370 - Added support for AmigaOS.
371 - Some mostly minor bug fixes. SF issues include: #1006708,
372 #1021776, #1023646, #1114960, #1156398, #1221160, #1271642.
374 Release 1.95.8 Fri Jul 23 2004
375 - Major new feature: suspend/resume. Handlers can now request
376 that a parse be suspended for later resumption or aborted
377 altogether. See "Temporarily Stopping Parsing" in the
378 documentation for more details.
379 - Some mostly minor bug fixes, but compilation should no
380 longer generate warnings on most platforms. SF issues
381 include: #827319, #840173, #846309, #888329, #896188, #923913,
382 #928113, #961698, #985192.
384 Release 1.95.7 Mon Oct 20 2003
385 - Fixed enum XML_Status issue (reported on SourceForge many
386 times), so compilers that are properly picky will be happy.
387 - Introduced an XMLCALL macro to control the calling
388 convention used by the Expat API; this macro should be used
389 to annotate prototypes and definitions of callback
390 implementations in code compiled with a calling convention
391 other than the default convention for the host platform.
392 - Improved ability to build without the configure-generated
393 expat_config.h header. This is useful for applications
394 which embed Expat rather than linking in the library.
395 - Fixed a variety of bugs: see SF issues #458907, #609603,
396 #676844, #679754, #692878, #692964, #695401, #699323, #699487,
398 - Improved hash table lookups.
399 - Added more regression tests and improved documentation.
401 Release 1.95.6 Tue Jan 28 2003
402 - Added XML_FreeContentModel().
403 - Added XML_MemMalloc(), XML_MemRealloc(), XML_MemFree().
404 - Fixed a variety of bugs: see SF issues #615606, #616863,
405 #618199, #653180, #673791.
406 - Enhanced the regression test suite.
407 - Man page improvements: includes SF issue #632146.
409 Release 1.95.5 Fri Sep 6 2002
410 - Added XML_UseForeignDTD() for improved SAX2 support.
411 - Added XML_GetFeatureList().
412 - Defined XML_Bool type and the values XML_TRUE and XML_FALSE.
413 - Use an incomplete struct instead of a void* for the parser
415 - Fixed UTF-8 decoding bug that caused legal UTF-8 to be rejected.
416 - Finally fixed bug where default handler would report DTD
417 events that were already handled by another handler.
418 Initial patch contributed by Darryl Miles.
419 - Removed unnecessary DllMain() function that caused static
420 linking into a DLL to be difficult.
421 - Added VC++ projects for building static libraries.
422 - Reduced line-length for all source code and headers to be
423 no longer than 80 characters, to help with AS/400 support.
424 - Reduced memory copying during parsing (SF patch #600964).
425 - Fixed a variety of bugs: see SF issues #580793, #434664,
426 #483514, #580503, #581069, #584041, #584183, #584832, #585537,
427 #596555, #596678, #598352, #598944, #599715, #600479, #600971.
429 Release 1.95.4 Fri Jul 12 2002
430 - Added support for VMS, contributed by Craig Berry. See
431 vms/README.vms for more information.
432 - Added Mac OS (classic) support, with a makefile for MPW,
433 contributed by Thomas Wegner and Daryle Walker.
434 - Added Borland C++ Builder 5 / BCC 5.5 support, contributed
435 by Patrick McConnell (SF patch #538032).
436 - Fixed a variety of bugs: see SF issues #441449, #563184,
437 #564342, #566334, #566901, #569461, #570263, #575168, #579196.
438 - Made skippedEntityHandler conform to SAX2 (see source comment)
439 - Re-implemented WFC: Entity Declared from XML 1.0 spec and
440 added a new error "entity declared in parameter entity":
441 see SF bug report #569461 and SF patch #578161
442 - Re-implemented section 5.1 from XML 1.0 spec:
443 see SF bug report #570263 and SF patch #578161
445 Release 1.95.3 Mon Jun 3 2002
446 - Added a project to the MSVC workspace to create a wchar_t
447 version of the library; the DLLs are named libexpatw.dll.
448 - Changed the name of the Windows DLLs from expat.dll to
449 libexpat.dll; this fixes SF bug #432456.
450 - Added the XML_ParserReset() API function.
451 - Fixed XML_SetReturnNSTriplet() to work for element names.
452 - Made the XML_UNICODE builds usable (thanks, Karl!).
453 - Allow xmlwf to read from standard input.
454 - Install a man page for xmlwf on Unix systems.
455 - Fixed many bugs; see SF bug reports #231864, #461380, #464837,
456 #466885, #469226, #477667, #484419, #487840, #494749, #496505,
457 #547350. Other bugs which we can't test as easily may also
458 have been fixed, especially in the area of build support.
460 Release 1.95.2 Fri Jul 27 2001
461 - More changes to make MSVC happy with the build; add a single
462 workspace to support both the library and xmlwf application.
463 - Added a Windows installer for Windows users; includes
465 - Added compile-time constants that can be used to determine the
467 - Removed a lot of GNU-specific dependencies to aide portability
468 among the various Unix flavors.
469 - Fix the UTF-8 BOM bug.
470 - Cleaned up warning messages for several compilers.
471 - Added the -Wall, -Wstrict-prototypes options for GCC.
473 Release 1.95.1 Sun Oct 22 15:11:36 EDT 2000
474 - Changes to get expat to build under Microsoft compiler
475 - Removed all aborts and instead return an UNEXPECTED_STATE error.
476 - Fixed a bug where a stray '%' in an entity value would cause an
478 - Defined XML_SetEndNamespaceDeclHandler. Thanks to Darryl Miles for
479 finding this oversight.
480 - Changed default patterns in lib/Makefile.in to fit non-GNU makes
481 Thanks to robin@unrated.net for reporting and providing an
483 - The reference had the wrong label for XML_SetStartNamespaceDecl.
484 Reported by an anonymous user.
486 Release 1.95.0 Fri Sep 29 2000
487 - XML_ParserCreate_MM
488 Allows you to set a memory management suite to replace the
489 standard malloc,realloc, and free.
490 - XML_SetReturnNSTriplet
491 If you turn this feature on when namespace processing is in
492 effect, then qualified, prefixed element and attribute names
493 are returned as "uri|name|prefix" where '|' is whatever
494 separator character is used in namespace processing.
495 - Merged in features from perl-expat
496 o XML_SetElementDeclHandler
497 o XML_SetAttlistDeclHandler
498 o XML_SetXmlDeclHandler
499 o XML_SetEntityDeclHandler
500 o StartDoctypeDeclHandler takes 3 additional parameters:
501 sysid, pubid, has_internal_subset
502 o Many paired handler setters (like XML_SetElementHandler)
503 now have corresponding individual handler setters
504 o XML_GetInputContext for getting the input context of
505 the current parse position.
506 - Added reference material
507 - Packaged into a distribution that builds a sharable library