CVE-2019-6250
CVSS v3
8.8
HIGH
EPSS Score
28.6 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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).
Technical details
- Published
- 2019-01-13
Frequently asked questions
What is CVE-2019-6250?
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).
Is CVE-2019-6250 actively exploited?
Active exploitation of CVE-2019-6250 has not been confirmed. The EPSS score is 28.6%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-6250?
CVE-2019-6250 has a CVSS v3 base score of 8.8 (HIGH severity).
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