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Vulnerability of Apple iOS: privilege escalation via extensions

Synthesis of the vulnerability 

An attacker can bypass restrictions via extensions of Apple iOS, in order to escalate his privileges.
Impacted software: iOS by Apple, iPhone.
Severity of this computer vulnerability: 1/4.
Creation date: 30/09/2019.
Références of this announce: CERTFR-2019-AVI-473, CVE-2019-8779, HT210613, HT210624, VIGILANCE-VUL-30466.

Description of the vulnerability 

An attacker can bypass restrictions via extensions of Apple iOS, in order to escalate his privileges.
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This security alert impacts software or systems such as iOS by Apple, iPhone.

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

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

An attacker with a expert ability can exploit this security announce.

Solutions for this threat 

Apple iOS: version 13.1.1.
The version 13.1.1 is fixed.
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