Memory Leak Affecting kernel-uek-tools package, versions <0:4.14.35-2047.512.6.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLS-2803234
  • published26 Apr 2022
  • disclosed3 Mar 2022

Introduced: 3 Mar 2022

CVE-2021-4002  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-tools to version 0:4.14.35-2047.512.6.el7uek or higher.
This issue was patched in ELSA-2022-9313.

NVD Description

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

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

CVSS Scores

version 3.1