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Vulnerability of OpenBSD: denial of service via qsort

Synthesis of the vulnerability 

An attacker can generate a fatal error via qsort() of OpenBSD, in order to trigger a denial of service.
Impacted software: iOS by Apple, iPhone, Mac OS X, OpenBSD.
Severity of this computer vulnerability: 1/4.
Creation date: 20/06/2017.
Revision date: 29/06/2017.
Références of this announce: APPLE-SA-2017-09-19-1, APPLE-SA-2017-09-25-1, APPLE-SA-2017-09-25-4, CVE-2017-1000373, HT208144, VIGILANCE-VUL-23038.

Description of the vulnerability 

An attacker can generate a fatal error via qsort() of OpenBSD, in order to trigger a denial of service.
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This security announce impacts software or systems such as iOS by Apple, iPhone, Mac OS X, OpenBSD.

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

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

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 

Apple iOS: version 11.
The version 11 is fixed:
  https://www.apple.com/itunes/

Apple macOS: version 10.13.
The version 10.13 is fixed:
  https://www.apple.com/support/downloads/
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