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Divide By Zero Affecting kernel-uek-debug package, versions <0:2.6.39-400.316.1.el5uek

Severity

high

    Threat Intelligence

    EPSS
    0.09% (39th percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2546720
  • published 10 Apr 2022
  • disclosed 26 Jul 2019
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Introduced: 26 Jul 2019

CVE-2019-14284 Open this link in a new tab
CWE-369 Open this link in a new tab

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.39-400.316.1.el5uek or higher.
This issue was patched in ELSA-2019-4855.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:5 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

version 3.1
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Snyk

6.2 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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NVD

6.2 medium
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SUSE

5.5 medium
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Red Hat

5 medium