Releases: maxmind/libmaxminddb
Releases · maxmind/libmaxminddb
Minor Bug Fixes
1.1.5 - 2016-03-20
- Previously, reading a database with a pointer in the metadata would cause an
MMDB_INVALID_METADATA_ERROR
to be returned. This was due to an invalid
offset being used when calculating the pointer. Thedata_section
and
metadata_section
fields now both point to the beginning of the data
section. Previously,data_section
pointed to the beginning of the data
separator. This will not affect anyone using only documented fields from
MMDB_s
. MMDB_lookup_sockaddr
will setmmdb_error
to
MMDB_IPV6_LOOKUP_IN_IPV4_DATABASE_ERROR
if an IPv6sockaddr
is looked up
in an IPv4-only database. Previously onlyMMDB_lookup_string
would set
this error code.- When resolving an address, this library now relies on
getaddrinfo
to
determine the address family rather than trying to guess it itself.
Packaging fixes
1.1.4 - 2016-01-06
- Packaging fixes. The 1.1.3 tarball release contained a lot of extra junk in the t/ directory.
More overflow and malloc checks
This tarball has since been removed because it was not cleanly packaged. Use 1.1.4 or newer instead.
- Added several additional checks to make sure that we don't attempt to read
past the end of the databases's data section. Implemented by Tobias
Stoeckmann. GitHub #103. - When searching for the database metadata, there was a bug that caused the
code to think it had found valid metadata when none existed. In addition,
this could lead to an attempt to read past the end of the database
entirely. Finally, if there are multiple metadata markers in the database,
we treat the final one as the start of the metdata, instead of the first.
Implemented by Tobias Stoeckmann. GitHub #102. - Don't attempt to mmap a file that is too large to be mmapped on the
system. Implemented by Tobias Stoeckmann. GitHub #101. - Added a missing out of memory check when reading a file's
metadata. Implemented by Tobias Stoeckmann. GitHub #101. - Added several additional checks to make sure that we never attempt to
malloc
more thanSIZE_MAX
memory, which would lead to integer
overflow. This could only happen with pathological databases. Implemented by
Tobias Stoeckmann. GitHub #101.
Improved handling of corrupt databses and pkg-config support
- IMPORTANT: This release includes a number of important security fixes. Among these fixes is improved validation of the database metadata. Unfortunately, MaxMind GeoIP2 and GeoLite2 databases created earlier than January 28, 2014 had an invalid data type for the record_size in the metadata. Previously these databases worked on little endian machines with libmaxminddb but did not work on big endian machines. Due to increased safety checks when reading the file, these databases will no longer work on any platform. If you are using one of these databases, we recommend that you upgrade to the latest GeoLite2 or GeoIP2 database
- Added pkg-config support. If your system supports it, then running
make install
now installs alibmaxminddb.pc
file for pkgconfig. Implemented by
Jan Vcelak. - Several segmentation faults found with afl-fuzz were fixed. These were
caused by missing bounds checking and missing verification of data type. MMDB_get_entry_data_list
will now fail on data structures with a depth
greater than 512 and data structures that are cyclic. This should not
affect any known MaxMind DB in production. All databases produced by
MaxMind have a depth of less than five.
Added missing header back to source dist
1.1.1 Release for 1.1.1
Improved error handling, Windows fixes, Autotool fixes
- Previously, when there was an error in
MMDB_open()
,errno
would
generally be overwritten during cleanup, preventing a useful value from
being returned to the caller. This was changed so that theerrno
value
from the function call that caused the error is restored before returning to
the caller. In particular, this is important forMMDB_IO_ERROR
errors as
checkingerrno
is often the only way to determine what actually failed. - If
mmap()
fails due to running out of memory space, an
MMDB_OUT_OF_MEMORY_ERROR
is now returned fromMMDB_open
rather than an
MMDB_IO_ERROR
. - On Windows, the
CreateFileMappingA()
handle was not properly closed if
opening the database succeeded. Fixed by Bly Hostetler. GitHub #75 & #76. - On Windows, we were not checking the return value of
CreateFileMappingA()
properly for errors. Fixed by Bly Hotetler. GitHub #78. - Several warnings from Clang's scan-build were fixed. GitHub #86.
- All headers are now installed in
$(includedir)
. GitHub #89. - We no longer install
maxminddb-compat-util.h
. This header was intended for
internal use only.
Minor fixes and Windows improvements
- If you used a non-integer string as an array index when doing a lookup with
MMDB_get_value
,MMDB_vget_value
, orMMDB_aget_value
, the first element
of the array would be returned rather than an error. A
MMDB_LOOKUP_PATH_DOES_NOT_MATCH_DATA_ERROR
error will now be returned.
GitHub #61. - If a number larger than
LONG_MAX
was used in the same functions,
LONG_MAX
would have been used in the lookup. Now a
MMDB_INVALID_LOOKUP_PATH_ERROR
error will be returned. - Visual Studio build files were added for unit tests and some compatibility
issues with the tests were fixed. - Visual Studio project was updated to use property pages. Patch by Andre.
GitHub #69. - A test failure in
t/compile_c++_t.pl
on new installs was fixed.
Windows and C++ improvements
1.0.3 - 2014-12-02
- A memory and file handle leak on Win32 was fixed when getting the database
size fails. Patch by Federico G. Schwindt. GitHub PR #49. - Documentation fix. Federico G. Schwindt. GitHub PR #50.
- Added Visual Studio build files and fixed incorrect CreateFileMappingA
usage. Patch by Andre. GitHub #52. - The includes for the Windows header files were made lowercase in order to
match the actual file names on case-sensitive file systems. GitHub PR #57. - Removed
realloc()
calls that caused warnings on Windows and generally
cleaned up memory allocation inMMDB_vget_value()
. See relevant discussion
in GitHub #52. - Added an
extern "C" { ... }
wrapper to maxminddb.h when compiling with a
C++ compiler. GitHub #55.
Bug fixes
- Fixed a number of small issues found by Coverity.
- When freeing the MMDB struct in
MMDB_close()
we make sure to set the
pointers to NULL after freeing the memory they point to. This makes it safe
to callMMDB_close
more than once on the sameMMDB_s
struct
pointer. Before this change, calling this function twice on the same pointer
could cause the code to free memory that belonged to something else in the
process. Patch by Shuxin Yang. GitHub PR #41.
Added missing LICENSE and NOTICE files to distribution.
No code changes.