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Integer Overflow or Wraparound Affecting zeromq3 package, versions <4.3.1-1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
28.72% (97th percentile)

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  • Snyk IDSNYK-DEBIAN11-ZEROMQ3-517934
  • published13 Jan 2019
  • disclosed13 Jan 2019
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Introduced: 13 Jan 2019

CVE-2019-6250  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Debian:11 zeromq3 to version 4.3.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zeromq3 package and not the zeromq3 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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).