Allocation of Resources Without Limits or Throttling Affecting kernel-uek package, versions <0:4.1.12-124.50.2.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2597111
  • published10 Apr 2022
  • disclosed5 Mar 2021

Introduced: 5 Mar 2021

CVE-2021-28038  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.1.12-124.50.2.el7uek or higher.
This issue was patched in ELSA-2021-9215.

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.

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

CVSS Scores

version 3.1