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Vulnerability of Linux kernel: use after free via audit_data_to_entry

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via audit_data_to_entry() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted software: Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this computer vulnerability: 2/4.
Creation date: 13/01/2021.
Références of this announce: CERTFR-2021-AVI-021, CERTFR-2021-AVI-035, CVE-2020-0444, openSUSE-SU-2021:0075-1, SUSE-SU-2021:0094-1, SUSE-SU-2021:0095-1, SUSE-SU-2021:0096-1, SUSE-SU-2021:0097-1, SUSE-SU-2021:0098-1, SUSE-SU-2021:0108-1, SUSE-SU-2021:0117-1, SUSE-SU-2021:0118-1, SUSE-SU-2021:0133-1, VIGILANCE-VUL-34300.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via audit_data_to_entry()...
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This threat bulletin impacts software or systems such as Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

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

Solutions for this threat 

Solutions for this vulnerability are not yet public.
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