libzmq 4.3.2
CVE-2019-13132: a remote, unauthenticated client connecting to a
libzmq application, running with a socket listening with CURVE
encryption/authentication enabled, may cause a stack overflow and
overwrite the stack with arbitrary data, due to a buffer overflow in
the library. Users running public servers with the above configuration
are highly encouraged to upgrade as soon as possible, as there are no
known mitigations. All versions from 4.0.0 and upwards are affected.
Thank you Fang-Pen Lin for finding the issue and reporting it!
New DRAFT (see NEWS for 4.2.0) zmq_socket_monitor_versioned API that supports
a versioned monitoring events protocol as a parameter. Passing 1 results in
the same behaviour as zmq_socket_monitor.
Version 2 of the events protocol allows new events, new metadata, different
socket types for the monitors and more. It is described in details in
doc/zmq_socket_monitor_versioned.txt
New DRAFT (see NEWS for 4.2.0) zmq_socket_monitor_pipes_stats that triggers
a new ZMQ_EVENT_PIPES_STATS to be delivered via zmq_socket_monitor_versioned
v2 API, which contains the current status of all the queues owned by the
monitored socket. See doc/zmq_socket_monitor_versioned.txt for details.
New DRAFT (see NEWS for 4.2.0) zmq_poller_fd that returns the FD of a thread
safe socket. See doc/zmq_poller.txt for details.
New DRAFT (see NEWS for 4.2.0) socket options:
ZMQ_XPUB_MANUAL_LAST_VALUE is similar to ZMQ_XPUB_MANUAL but allows to avoid
duplicates when using last value caching.
ZMQ_SOCKS_USERNAME and ZMQ_SOCKS_PASSWORD that implement SOCKS5 proxy
authentication.
See doc/zmq_setsockopt.txt and doc/zmq_getsockopt.txt for details.
Implemented background thread names for Windows, when the Visual Studio
debugger is being used.
Fixed 3358 - test_security_zap failing due to SIGBUS on SPARC64, hard-coded
IPC socket binds in tests cause race conditions
Fixed 3361 - enabling GSSAPI support (when using autools) does not work due
to regression introduced in 4.2.3
Fixed 3362 - remove documentation for ZMQ_THREAD_PRIORITY context option
getter, it's not implemented
Fixed 3363 - tests fail to build due to stricter compiler printf validation
in new versions of GCC
Fixed 3367 - try to infer cacheline size at build time, first with
getconf LEVEL1_DCACHE_LINESIZE, and then by reading
/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size
(autoconf only), and only then falling back to the previous
default of 64 bytes. Avoids false sharing on POWER and s390x.
Import ax_func_posix_memalign.m4 as a more reliable check for
posix_memalign presence on some unix platforms.
Prefer c++11 atomic primitives to compiler intrinsics, when
both are available, as the former is more reliable.
Set test_pair_ipc and test_rebind_ipc to XFAIL on GNU/Hurd due
to non-functioning getsockname on AF_UNIX.
Fixed 3370 - Make queue length and HWM state observable
Fixed 3373 - performance regression in zmq_poll on CentOS 6/7
Fixed 3375 - assign names to all pthreads created by the library to ease
debugging
Fixed 3376 - assigned random TIPC port is not returned by ZMQ_LAST_ENDPOINT
Fixed 3385 - TCP port in ZMQ_LAST_ENDPOINT depends on global locale
Fixed 3404 - use std::condition_variable_any when possible
Fixed 3436 - reconnect interval exponential backoff and may lead to integer
overflows
Fixed 3440 - improve zmq_proxy performance by batching of up to 1000
consecutive messages (if any) and add perf/proxy_thr tool
Fixed 3451 - fix support of /dev/poll on Solaris
Fixed 3452 - strnlen may not be available
Fixed 1462 - test failure in test_filter_ipc due to invalid system groups
Fixed 3269 - Boost.ASIO integration stopped working with v4.3.0
Fixed 3479 - ZeroMQ does not build for QNX 6.6 with CMake
Fixed 3481 - add include to fix uClibc++ compilation
Fixed 3491 - build broken on Fedora 30
Fixed 3494 - ZeroMQConfig.cmake fails if shared libraries are not built
Fixed 3498 - syntax error on Windows related to socket descriptor type
Fixed 3500 - PLAIN HELLO message incorrectly uses WELCOME literal, regression
introduced in 4.3.0
Fixed 3517 - configure errors because of syntax errors in the use of test
shell command
Fixed 3521 - document how to achieve high performance with the PGM transport
Fixed 3526 - failure case behavior unclear in zmq_msg_send documentation
Fixed 3537 - fix build on z/OS by using pthread_equal instead of comparing
variables directly
Fixed 3546 - CMake links with librt on MinGW which is not available
Many coding style, duplication, testing and static analysis improvements.
8c4adaa231