dosfstools was updated to fix two security issues. These security issues were fixed: - CVE-2015-8872: The set_fat function in fat.c in dosfstools might have allowed attackers to corrupt a FAT12 filesystem or cause a denial of service by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an off-by-two error . - CVE-2016-4804: The read_boot function in boot.c in dosfstools allowed attackers to cause a denial of service via a crafted filesystem, which triggers a heap-based buffer overflow in the read_fat function or an out-of-bounds heap read in get_fat function .