CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
97.6%
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).
Author | Note |
---|---|
ebarretto | Vulnerable code introduce in 4.2.0 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
97.6%