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Vulnerability of Linux kernel: use after free via aa_label_parse

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via aa_label_parse() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted software: Linux.
Severity of this computer vulnerability: 2/4.
Creation date: 08/11/2019.
Références of this announce: CVE-2019-18814, VIGILANCE-VUL-30820.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via aa_label_parse() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity vulnerability impacts software or systems such as Linux.

Our Vigil@nce team determined that the severity of this vulnerability 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 weakness alert.

Solutions for this threat 

Linux kernel: patch for aa_label_parse.
A patch is indicated in information sources.
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