zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow
in inflate in inflate.c via a large gzip header extra field. NOTE: only
applications that call inflateGetHeader are affected. Some common
applications bundle the affected zlib source code but may be unable to
call inflateGetHeader.
Fixes: CVE-2022-37434
References: https://github.com/ivd38/zlib_overflow
Signed-off-by: Petr Štetiar <ynezz@true.cz>
List of changes since previous release from 2018 is quite long:
* Fix crc32.c to compile local functions only if used.
* Check for cc masquerading as gcc or clang in configure.
* Remove destructive aspects of make distclean.
* Separate out address sanitizing from warnings in configure.
* Eliminate use of ULL constants.
* Add fallthrough comments for gcc.
* Clean up minizip to reduce warnings for testing.
* Fix unztell64() in minizip to work past 4GB. (Daniël Hörchner)
* minizip warning fix if MAXU32 already defined. (gvollant)
* Replace black/white with allow/block. (theresa-m)
* Fix indentation in minizip's zip.c.
* Improve portability of contrib/minizip.
* Correct typo in blast.c.
* Change macro name in inflate.c to avoid collision in VxWorks.
* Clarify gz* function interfaces, referring to parameter names.
* Fix error in comment on the polynomial representation of a byte.
* Fix memory leak on error in gzlog.c.
* Avoid adding empty gzip member after gzflush with Z_FINISH.
* Explicitly note that the 32-bit check values are 32 bits.
* Use ARM crc32 instructions if the ARM architecture has them.
* Add use of the ARMv8 crc32 instructions when requested.
* Correct comment in crc32.c.
* Don't bother computing check value after successful inflateSync().
* Use atomic test and set, if available, for dynamic CRC tables.
* Speed up software CRC-32 computation by a factor of 1.5 to 3.
* Add crc32_combine_gen() and crc32_combine_op() for fast combines.
* Add tables for crc32_combine(), to speed it up by a factor of 200.
* Fix the zran.c example to work on a multiple-member gzip file.
* Add gznorm.c example, which normalizes gzip files.
* Show all the codes for the maximum tables size in enough.c.
* Clarify that prefix codes are counted in enough.c.
* Use inline function instead of macro for index in enough.c.
* Clean up code style in enough.c, update version.
* Use a macro for the printf format of big_t in enough.c.
* Use a structure to make globals in enough.c evident.
* Assure that the number of bits for deflatePrime() is valid.
* Fix a bug that can crash deflate on some input when using Z_FIXED.
* Correct the initialization requirements for deflateInit2().
* Emphasize the need to continue decompressing gzip members.
* Add legal disclaimer to README.
* Fix deflateEnd() to not report an error at start of raw deflate.
* Remove old assembler code in which bugs have manifested.
* Make the names in functions declarations identical to definitions.
* Avoid an undefined behavior of memcpy() in _tr_stored_block().
* Avoid undefined behaviors of memcpy() in gz*printf().
* Avoid an undefined behavior of memcpy() in gzappend().
* Avoid the use of ptrdiff_t.
* Handle case where inflateSync used when header never processed.
* Don't compute check value for raw inflate if asked to validate.
* Add address checking in clang to -w option of configure.
* Return an error if the gzputs string length can't fit in an int.
* Small speedup to inflate [psumbera].
* Update use of errno for newer Windows CE versions.
* Avoid some conversion warnings in gzread.c and gzwrite.c.
* Have Makefile return non-zero error code on test failure.
* Avoid a conversion error in gzseek when off_t type too small.
* Fix CLEAR_HASH macro to be usable as a single statement.
* Fix bug when window full in deflate_stored().
* Limit hash table inserts after switch from stored deflate.
* Permit a deflateParams() parameter change as soon as possible.
* Cygwin does not have _wopen(), so do not create gzopen_w() there.
Removed 006-fix-compressor-crash-on-certain-inputs.patch which was
hotfix for CVE-2018-25032 and is now included in this release.
This release is not available on @SF (yet?) so the sources are now
pulled from GitHub.
Fixes: CVE-2018-25032
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Tavis has just reported, that he was recently trying to track down a
reproducible crash in a compressor. Believe it or not, it really was a
bug in zlib-1.2.11 when compressing (not decompressing!) certain inputs.
Tavis has reported it upstream, but it turns out the issue has been
public since 2018, but the patch never made it into a release. As far as
he knows, nobody ever assigned it a CVE.
Suggested-by: Tavis Ormandy <taviso@gmail.com>
References: https://www.openwall.com/lists/oss-security/2022/03/24/1
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This package had two patches (with two headers etc.) in one file,
which would have quilt merging them during a refresh.
Separate these patches into two files, as the original intent seems
to be having them separate.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The buildroot pkg-config (in staging_dir/host/bin) overrides the prefix
and exec_prefix variables in *.pc files, to supply the correct
(buildroot) paths for callers. If other variables are not defined
relative to prefix and exec_prefix, then the returned values will be
incorrect.
The default zlib.pc file generated by cmake contains absolute paths.
This patches the file to use relative paths (relative to ${prefix} and
${exec_prefix}).
Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This allows us to link the other tools against our libz and we do not
need the system zlib any more.
Only the static linked library is copied to the staging directory so we
have a statically linked library on all systems and not only on Linux.
This also adds the new dependencies of the packages which are depending
on zlib.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Instead of inferring the availability of NEON support from the target
optimization flags, use a preprocessor test to decide whether to enable
ARMv8 NEON optimizations.
Fixes the following build error spotted by the mediatek/32 buildbot:
[ 26%] Building C object CMakeFiles/zlib.dir/contrib/arm/inflate.o
In file included from .../zlib-1.2.11/contrib/arm/chunkcopy.h:10:0,
from .../zlib-1.2.11/contrib/arm/inflate.c:87:
.../arm_neon.h:31:2: error: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
#error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
^
In file included from .../zlib-1.2.11/contrib/arm/inflate.c:87:0:
.../zlib-1.2.11/contrib/arm/chunkcopy.h:18:9: error: unknown type name 'uint8x16_t'
typedef uint8x16_t chunkcopy_chunk_t;
^
[...]
CMakeFiles/zlib.dir/build.make:302: recipe for target 'CMakeFiles/zlib.dir/contrib/arm/inflate.o' failed
Fixes: 3acecba520 "package/libs/zlib: Add ARM and NEON optimizations"
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Some packages such as Python/Python3 (host pip/pip3) needs this
to compile.
More detailed explanation provided by Alexandru:
"i need the zlib/host for Python/Python3 ; because, it seems the
host pip/pip3 needs this to work ; i suspect in older versions
this worked, because some of the host's build env would be used
in the build, and then the zlib-dev from the host distro would
be used ; now, the host-build does not seem to have any
-I/usr/include stuff, which is good
and it also seems that Python/Python3 does not like it if the
zlib-dev package is too old, so using this zlib/host would be
good for this as well"
Source:
https://github.com/lede-project/source/pull/1329#issuecomment-351055861
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Add option to use O3 optimization as not all devices have
space constraints. This option is default using GCC in upstream
but isn't in the CMake makefile for some reason.
Source: https://github.com/madler/zlib/blob/master/configure#L170
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
CPE ids helps to tracks CVE in packages.
https://cpe.mitre.org/specification/
Thanks to swalker for CPE to package mapping and
keep tracking CVEs.
Acked-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Update to 1.2.11 as suggested by upstream
Also add SF as primary source and main site as fallback
Note: SF doesn't carry the 1.2.11 update yet.
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
* Fix bug in deflate_stored() for zero-length input
* Fix bug in gzwrite.c that produced corrupt gzip files
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
The patch adds a new package zlib-dev. It contains all files needed for
compiling a program using the zlib library:
/usr/include/zconf.h
/usr/include/zlib.h
/usr/lib/libz.a
/usr/lib/pkgconfig/zlib.pc
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
SVN-Revision: 48151
