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CVE-2019-14284 PUBLISHED

In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default.

EPSS 0.05% · 14.8th percentile

Risk Scores

EPSS Score
0.05%
14.8th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSlinux-hwe4.18.0-13.14~18.04.1, 0, 4.18.0-17.18~18.04.1
Ubuntu:18.04:LTSlinux-hwe-edge5.0.0-16.17~18.04.1, 5.0.0-19.20~18.04.1, 5.0.0-20.21~18.04.1
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips0, 4.15.0-2000.4
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:Pro:FIPS:16.04:LTSlinux-fips4.4.0-1017.22, 4.4.0-1015.20, 4.4.0-1013.17
Ubuntu:18.04:LTSlinux-gke-4.154.15.0-1033.35, 4.15.0-1034.36, 4.15.0-1036.38
Ubuntu:22.04:LTSlinux-riscv5.13.0-1004.4, 5.15.0-1028.32, 5.15.0-1027.31
Ubuntu:16.04:LTSlinux-aws4.4.0-1061.70, 4.4.0-1057.66, 4.4.0-1055.64
Ubuntu:18.04:LTSlinux-oem-osp10, 5.0.0-1012.13, 5.0.0-1010.11
Ubuntu:24.04:LTSlinux-raspi-realtime0, 6.8.0-2019.20
Ubuntu:Pro:14.04:LTSlinux-azure4.15.0-1023.24~14.04.1, 4.15.0-1057.62~14.04.1, 4.15.0-1056.61~14.04.1
Ubuntu:18.04:LTSlinux-kvm4.15.0-1012.12, 4.15.0-1034.34, 4.15.0-1035.35
Ubuntu:Pro:FIPS:18.04:LTSlinux-aws-fips4.15.0-2000.4, 0
Ubuntu:16.04:LTSlinux-gcp0, 4.10.0-1004.4, 4.10.0-1006.6
Ubuntu:16.04:LTSlinux-azure0, 4.15.0-1018.18~16.04.1, 4.15.0-1014.14~16.04.1
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-azure-fips0, 4.15.0-1002.2
Ubuntu:18.04:LTSlinux-oem4.15.0-1026.31, 0, 4.15.0-1024.29
Ubuntu:Pro:14.04:LTSlinux-lts-xenial4.4.0-146.172~14.04.1, 0, 4.4.0-13.29~14.04.1
Ubuntu:Pro:FIPS:18.04:LTSlinux-azure-fips0, 4.15.0-1002.2
Ubuntu:16.04:LTSlinux-raspi24.4.0-1100.108, 4.4.0-1101.109, 4.4.0-1102.110

…and 21 more

Timeline

References

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