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NULL Pointer Dereference Affecting kernel-uek package, versions <0:4.1.12-112.14.14.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2528030
  • published10 Apr 2022
  • disclosed22 Nov 2017
Report a new vulnerability Found a mistake?

Introduced: 22 Nov 2017

CVE-2017-12193  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.1.12-112.14.14.el7uek or higher.
This issue was patched in ELSA-2018-4025.

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.

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.