An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3. This flaw allows a remote unauthenticated attacker to send crafted PUB messages that consume excessive memory if the CURVE/ZAP authentication is disabled on the server, causing a denial of service. The highest threat from this vulnerability is to system availability.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "low", "binaries": [ { "libzmq3-dev": "4.0.4+dfsg-2ubuntu0.1+esm2", "libzmq3-dbgsym": "4.0.4+dfsg-2ubuntu0.1+esm2", "libzmq3-dev-dbgsym": "4.0.4+dfsg-2ubuntu0.1+esm2", "libzmq3": "4.0.4+dfsg-2ubuntu0.1+esm2", "libzmq3-dbg": "4.0.4+dfsg-2ubuntu0.1+esm2" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "low", "binaries": [ { "libzmq3-dev": "4.1.4-7ubuntu0.1+esm1", "libzmq5-dbg": "4.1.4-7ubuntu0.1+esm1", "libzmq5-dbgsym": "4.1.4-7ubuntu0.1+esm1", "libzmq3-dev-dbgsym": "4.1.4-7ubuntu0.1+esm1", "libzmq5": "4.1.4-7ubuntu0.1+esm1" } ] }