The util-linux libblkid is vulnerable to a Denial of Service attack during MSDOS partition table parsing, in the extended partition boot record (EBR). If the next EBR starts at relative offset 0, parsedosextended() will loop until running out of memory. An attacker could install a specially crafted MSDOS partition table in a storage device and trick a user into using it. This library is used, among others, by systemd-udevd daemon (CVE-2016-5011).