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Vulnerability of Linux kernel: use after free via drivers/usb/class/cdc-acm.c

Synthesis of the vulnerability

An attacker can force the usage of a freed memory area via drivers/usb/class/cdc-acm.c of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Severity of this alert: 2/4.
Creation date: 04/12/2019.
Références of this alert: CVE-2019-19530, openSUSE-SU-2019:2675-1, SUSE-SU-2019:3289-1, VIGILANCE-VUL-31049.

Description of the vulnerability

An attacker can force the usage of a freed memory area via drivers/usb/class/cdc...
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This threat impacts software or systems such as Linux, openSUSE Leap, SLES.

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

The trust level is of type confirmed by the editor, with an origin of physical access.

An attacker with a expert ability can exploit this cybersecurity bulletin.

Solutions for this threat

This vulnerability workaround will be public soon.
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