ZeroMQ libzmq 4.2.0 Release Candidate 1

CPE Details

ZeroMQ libzmq 4.2.0 Release Candidate 1
zeromq
libzmq
4.2.0
2019-07-15
11h37 +00:00
2019-07-15
11h37 +00:00
CPE NVD
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CPE Name: cpe:2.3:a:zeromq:libzmq:4.2.0:rc1:*:*:*:*:*:*

Informations

Vendor

zeromq

Product

libzmq

Version

4.2.0

Update

rc1

Related CVE

Open and find in CVE List

CVE ID Published Description Score Severity
CVE-2021-20237 2021-05-28 08h42 +00:00 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.
7.5
High
CVE-2021-20235 2021-04-01 11h47 +00:00 There's a flaw in the zeromq server in versions before 4.3.3 in src/decoder_allocators.hpp. The decoder static allocator could have its sized changed, but the buffer would remain the same as it is a static buffer. A remote, unauthenticated attacker who sends a crafted request to the zeromq server could trigger a buffer overflow WRITE of arbitrary data if CURVE/ZAP authentication is not enabled. The greatest impact of this flaw is to application availability, data integrity, and confidentiality.
8.1
High
CVE-2021-20234 2021-04-01 11h46 +00:00 An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compromised servers to crash. The highest threat from this vulnerability is to system availability.
6.5
Medium
CVE-2020-15166 2020-09-11 13h35 +00:00 In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.
7.5
High
CVE-2019-13132 2019-07-09 22h00 +00:00 In ZeroMQ libzmq before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2, 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.
9.8
Critical
CVE-2019-6250 2019-01-13 14h00 +00:00 A pointer overflow, with code execution, was discovered in ZeroMQ libzmq (aka 0MQ) 4.2.x and 4.3.x before 4.3.1. A v2_decoder.cpp zmq::v2_decoder_t::size_ready integer overflow allows an authenticated attacker to overwrite an arbitrary amount of bytes beyond the bounds of a buffer, which can be leveraged to run arbitrary code on the target system. The memory layout allows the attacker to inject OS commands into a data structure located immediately after the problematic buffer (i.e., it is not necessary to use a typical buffer-overflow exploitation technique that changes the flow of control).
8.8
High