CVE-2019-6250

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
13/01/2019
Last modified:
03/04/2019

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).

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:* 4.2.0 (including) 4.2.5 (including)
cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:* 4.3.0 (including) 4.3.1 (excluding)
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*