Divide By Zero Affecting kernel-uek-headers package, versions <0:4.14.35-1902.7.3.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKHEADERS-2546446
  • published10 Apr 2022
  • disclosed26 Jul 2019

Introduced: 26 Jul 2019

CVE-2019-14284  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-headers to version 0:4.14.35-1902.7.3.el7uek or higher.
This issue was patched in ELSA-2019-4836.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-headers package and not the kernel-uek-headers package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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.

References

CVSS Scores

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