Ubuntu Security Notice 5478-1 - Christian Moch and Michael Gruhn discovered that the libblkid library of util-linux did not properly manage memory under certain circumstances. A local attacker could possibly use this issue to cause denial of service by consuming all memory through a specially crafted MSDOS partition table.
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Red Hat Security Advisory 2016-2605-02 - The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include the fdisk configuration tool and the login program. Security Fix: It was found that util-linux's libblkid library did not properly handle Extended Boot Record partitions when reading MS-DOS partition tables. An attacker with physical USB access to a protected machine could insert a storage device with a specially crafted partition table that could, for example, trigger an infinite loop in systemd-udevd, resulting in a denial of service on that machine.
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