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Linux kernel: use after free via fixed_mdio_bus_init
Synthesis of the vulnerability
An attacker can force the usage of a freed memory area via fixed_mdio_bus_init() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Linux, openSUSE Leap, SLES.
Severity of this announce: 2/4.
Consequences of an intrusion: administrator access/rights, denial of service on server, denial of service on service.
Attacker's origin: user shell.
Creation date: 14/06/2019.
Références of this computer vulnerability: CVE-2019-12819, openSUSE-SU-2019:1570-1, openSUSE-SU-2019:1571-1, openSUSE-SU-2019:1579-1, SUSE-SU-2019:1550-1, VIGILANCE-VUL-29533.
Description of the vulnerability
An attacker can force the usage of a freed memory area via fixed_mdio_bus_init()...
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