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vulnerability note CVE-2019-1999

Linux kernel: use after free via binder_alloc_free_page

Synthesis of the vulnerability

An attacker can force the usage of a freed memory area via binder_alloc_free_page() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted software: Debian, Android OS, Linux, Ubuntu.
Severity of this computer vulnerability: 2/4.
Consequences of an attack: administrator access/rights, denial of service on server.
Attacker's origin: document.
Creation date: 12/08/2019.
Références of this announce: CERTFR-2019-AVI-381, CVE-2019-1999, DSA-4495-1, PROJ-ZERO-1721, USN-3979-1, VIGILANCE-VUL-30004.

Description of the vulnerability

An attacker can force the usage of a freed memory area via binder_alloc_free_page() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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