Race Condition Affecting kernel-uek-headers package, versions <0:4.14.35-1902.304.6.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKHEADERS-2577684
  • published10 Apr 2022
  • disclosed5 May 2020

Introduced: 5 May 2020

CVE-2020-12652  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-headers to version 0:4.14.35-1902.304.6.el7uek or higher.
This issue was patched in ELSA-2020-5755.

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.

The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a "double fetch" vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states "The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power."

CVSS Scores

version 3.1