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Vulnerability of Linux kernel: use after free via rwsem_down_write_slowpath

Synthesis of the vulnerability

An attacker can force the usage of a freed memory area via rwsem_down_write_slowpath() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Severity of this weakness: 2/4.
Creation date: 28/11/2019.
Références of this bulletin: CVE-2019-19318, VIGILANCE-VUL-31020.

Description of the vulnerability

An attacker can force the usage of a freed memory area via rwsem_down_write_slow...
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This vulnerability alert impacts software or systems such as Linux.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer vulnerability.

Solutions for this threat

This vulnerability fix will be public soon.
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