The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.

vulnerability bulletin CVE-2019-12819

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, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
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: CERTFR-2019-AVI-330, CERTFR-2019-AVI-337, CERTFR-2019-AVI-391, CVE-2019-12819, openSUSE-SU-2019:1570-1, openSUSE-SU-2019:1571-1, openSUSE-SU-2019:1579-1, SUSE-SU-2019:1550-1, SUSE-SU-2019:1823-1, SUSE-SU-2019:1823-2, SUSE-SU-2019:1851-1, SUSE-SU-2019:1852-1, SUSE-SU-2019:1855-1, USN-4094-1, VIGILANCE-VUL-29533.

Description 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.
Full Vigil@nce bulletin... (Free trial)

Computer vulnerabilities tracking service

Vigil@nce provides computers vulnerabilities bulletins. The Vigil@nce vulnerability database contains several thousand vulnerabilities. The Vigil@nce computer vulnerability tracking service alerts your teams of vulnerabilities or threats impacting your information system. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.