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Vulnerability of iptables: buffer overflow via iptables-restore

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via iptables-restore of iptables, in order to trigger a denial of service, and possibly to run code.
Impacted software: netfilter, SIMATIC.
Severity of this computer vulnerability: 2/4.
Creation date: 15/07/2019.
Références of this announce: CVE-2019-11360, SSB-439005, VIGILANCE-VUL-29770.

Description of the vulnerability 

An attacker can trigger a buffer overflow via iptables-restore of iptables, in order to trigger a denial of service, and possibly to run code.
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This security announce impacts software or systems such as netfilter, SIMATIC.

Our Vigil@nce team determined that the severity of this threat is medium.

The trust level is of type confirmed by the editor, with an origin of document.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer vulnerability announce.

Solutions for this threat 

iptables: version 1.8.3.
The version 1.8.3 is fixed:
  https://www.netfilter.org/projects/iptables/downloads.html#iptables-1.8.3

iptables: patch for iptables-restore.
A patch is indicated in information sources.

SIMATIC S7-1500 CPU 1518: workaround for GNU/Linux Vulnerabilities.
A workaround is indicated in the information source.
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