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Vulnerability of Linux kernel: use after free via get_futex_key

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via get_futex_key() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Linux.
Severity of this announce: 2/4.
Creation date: 08/05/2020.
Références of this computer vulnerability: PROJ-ZERO-2015, VIGILANCE-VUL-32215.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via get_futex_key() of th...
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This security note impacts software or systems such as Linux.

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

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

An attacker with a expert ability can exploit this computer weakness announce.

Solutions for this threat 

Workarounds for this vulnerability are not yet public.
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