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Vulnerability of Linux kernel: use after free via Perf_trace_lock_acquire

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via Perf_trace_lock_acquire of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted products: Linux.
Severity of this bulletin: 2/4.
Creation date: 13/12/2019.
Références of this threat: 205705, CVE-2019-19769, VIGILANCE-VUL-31149.

Description of the vulnerability 

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

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

Solutions for this threat 

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