Rapid7 Vulnerability & Exploit Database

FreeBSD: VID-8E48365A-214D-11E9-9F8A-0050562A4D7B (CVE-2019-6250): libzmq4 -- Remote Code Execution Vulnerability

Back to Search

FreeBSD: VID-8E48365A-214D-11E9-9F8A-0050562A4D7B (CVE-2019-6250): libzmq4 -- Remote Code Execution Vulnerability

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
01/08/2019
Created
03/19/2019
Added
01/27/2019
Modified
05/07/2019

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).

Solution(s)

  • freebsd-upgrade-package-libzmq4

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;