The parsedosextended function in partitions/dos.c in the libblkid library in util-linux allows physically proximate attackers to cause a denial of service (memory consumption) via a crafted MSDOS partition table with an extended partition boot record at zero offset.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "low", "binaries": [ { "uuid-runtime": "2.27.1-6ubuntu3.10+esm2", "libfdisk-dev": "2.27.1-6ubuntu3.10+esm2", "bsdutils": "1:2.27.1-6ubuntu3.10+esm2", "fdisk-udeb": "2.27.1-6ubuntu3.10+esm2", "bsdutils-dbgsym": "1:2.27.1-6ubuntu3.10+esm2", "libmount1-dbgsym": "2.27.1-6ubuntu3.10+esm2", "util-linux": "2.27.1-6ubuntu3.10+esm2", "fdisk-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2", "uuid-dev": "2.27.1-6ubuntu3.10+esm2", "libmount-dev": "2.27.1-6ubuntu3.10+esm2", "libuuid1": "2.27.1-6ubuntu3.10+esm2", "libblkid1-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libfdisk1-udeb": "2.27.1-6ubuntu3.10+esm2", "libsmartcols1-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libfdisk1-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2", "util-linux-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libfdisk1-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libsmartcols-dev": "2.27.1-6ubuntu3.10+esm2", "util-linux-locales": "2.27.1-6ubuntu3.10+esm2", "libsmartcols1": "2.27.1-6ubuntu3.10+esm2", "util-linux-udeb": "2.27.1-6ubuntu3.10+esm2", "libblkid1-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libuuid1-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libuuid1-udeb": "2.27.1-6ubuntu3.10+esm2", "mount": "2.27.1-6ubuntu3.10+esm2", "libmount1": "2.27.1-6ubuntu3.10+esm2", "libuuid1-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libsmartcols1-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libfdisk1": "2.27.1-6ubuntu3.10+esm2", "libsmartcols1-udeb": "2.27.1-6ubuntu3.10+esm2", "libblkid1-udeb": "2.27.1-6ubuntu3.10+esm2", "mount-dbgsym": "2.27.1-6ubuntu3.10+esm2", "uuid-runtime-dbgsym": "2.27.1-6ubuntu3.10+esm2", "libblkid-dev": "2.27.1-6ubuntu3.10+esm2", "libblkid1": "2.27.1-6ubuntu3.10+esm2", "util-linux-udeb-dbgsym": "2.27.1-6ubuntu3.10+esm2" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "setpriv": "2.31.1-0.4ubuntu3.3", "libfdisk-dev": "2.31.1-0.4ubuntu3.3", "fdisk-dbgsym": "2.31.1-0.4ubuntu3.3", "fdisk-udeb": "2.31.1-0.4ubuntu3.3", "bsdutils-dbgsym": "1:2.31.1-0.4ubuntu3.3", "libmount1-dbgsym": "2.31.1-0.4ubuntu3.3", "fdisk": "2.31.1-0.4ubuntu3.3", "util-linux": "2.31.1-0.4ubuntu3.3", "libblkid-dev": "2.31.1-0.4ubuntu3.3", "uuid-runtime": "2.31.1-0.4ubuntu3.3", "uuid-dev": "2.31.1-0.4ubuntu3.3", "libmount-dev": "2.31.1-0.4ubuntu3.3", "libuuid1": "2.31.1-0.4ubuntu3.3", "rfkill": "2.31.1-0.4ubuntu3.3", "libfdisk1-udeb": "2.31.1-0.4ubuntu3.3", "libblkid1-dbgsym": "2.31.1-0.4ubuntu3.3", "libsmartcols1-dbgsym": "2.31.1-0.4ubuntu3.3", "util-linux-dbgsym": "2.31.1-0.4ubuntu3.3", "libfdisk1-dbgsym": "2.31.1-0.4ubuntu3.3", "libsmartcols-dev": "2.31.1-0.4ubuntu3.3", "setpriv-dbgsym": "2.31.1-0.4ubuntu3.3", "util-linux-locales": "2.31.1-0.4ubuntu3.3", "libsmartcols1": "2.31.1-0.4ubuntu3.3", "util-linux-udeb": "2.31.1-0.4ubuntu3.3", "libuuid1-dbgsym": "2.31.1-0.4ubuntu3.3", "libuuid1-udeb": "2.31.1-0.4ubuntu3.3", "libsmartcols1-udeb": "2.31.1-0.4ubuntu3.3", "libmount1": "2.31.1-0.4ubuntu3.3", "libmount1-udeb": "2.31.1-0.4ubuntu3.3", "mount": "2.31.1-0.4ubuntu3.3", "libfdisk1": "2.31.1-0.4ubuntu3.3", "libblkid1-udeb": "2.31.1-0.4ubuntu3.3", "mount-dbgsym": "2.31.1-0.4ubuntu3.3", "uuid-runtime-dbgsym": "2.31.1-0.4ubuntu3.3", "rfkill-dbgsym": "2.31.1-0.4ubuntu3.3", "libblkid1": "2.31.1-0.4ubuntu3.3", "bsdutils": "1:2.31.1-0.4ubuntu3.3" } ] }