CVE-2019-13132

CVE-2019-13132 concerns ZeroMQ libzmq: a remote, unauthenticated client connecting to a libzmq app with a CURVE-enabled listening socket can trigger a stack/buffer overflow in the library, for libzmq versions up to just before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2. Public servers runn...

CVE-2020-15166

CVE-2020-15166 affects ZeroMQ (libzmq) up to 4.3.3. The vulnerability arises when a remote, unauthenticated client connects to a CURVE/ZAP-protected endpoint before the handshake completes, allowing a denial-of-service where legitimate clients cannot exchange messages, though handshakes complete....

CVE-2019-6250

CVE-2019-6250 : ZeroMQ libzmq (v4.2.x and 4.3.x before 4.3.1) contains a pointer/integer overflow in v2_decoder_t::size_ready that can overflow the buffer and, from an authenticated state, allow arbitrary code execution. The vulnerability arises from an incorrect bounds check and can enable injec...

CVE-2021-20235

CVE-2021-20235 describes a flaw in ZeroMQ libzmq server before 4.3.3 where the decoder static allocator could have its size changed while using a static buffer, enabling a remote, unauthenticated attacker to trigger a buffer overflow write via crafted requests if CURVE/ZAP authentication is disab...

CVE-2020-36400

CVE-2020-36400 affects ZeroMQ libzmq 4.3.3 and is a heap-based buffer overflow in zmq::tcp_read. Connected sources describe a remote, unauthenticated attacker triggering a buffer overflow on the zeromq server when receiving crafted input, potentially impacting availability, data integrity, and co...

CVE-2021-20234

CVE-2021-20234 is a memory-leak/ uncontrolled resource consumption flaw in the ZeroMQ client before 4.3.3 (src/pipe.cpp). It can cause a client that connects to multiple malicious or compromised servers to crash, impacting availability. Affected: ZeroMQ client library (libzmq) prior to 4.3.3. Exp...

CVE-2021-20237

CVE-2021-20237 affects ZeroMQ (src/xpub.cpp) for versions before 4.3.3. A remote, unauthenticated attacker can send crafted PUB messages to trigger a memory leak if CURVE/ZAP authentication is disabled, leading to denial of service and potential memory exhaustion. Public details confirm the vulne...