Use After Free Affecting kernel-uek package, versions <0:5.4.17-2136.307.3.4.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2847613
  • published25 May 2022
  • disclosed2 Jun 2022

Introduced: 25 May 2022

CVE-2022-1786  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:5.4.17-2136.307.3.4.el7uek or higher.
This issue was patched in ELSA-2022-9425.

NVD Description

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

A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

CVSS Scores

version 3.1