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).
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-01-13T15:00:00

Updated: 2024-08-04T20:16:24.696Z

Reserved: 2019-01-13T00:00:00

Link: CVE-2019-6250

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-01-13T15:29:00.547

Modified: 2024-11-21T04:46:18.743

Link: CVE-2019-6250

cve-icon Redhat

Severity : Important

Publid Date: 2019-01-08T00:00:00Z

Links: CVE-2019-6250 - Bugzilla