Out-of-Bounds Affecting kernel-uek-doc package, versions <0:5.4.17-2102.205.7.2.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-KERNELUEKDOC-2599955
  • published10 Apr 2022
  • disclosed26 May 2021

Introduced: 26 May 2021

CVE-2021-22543  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-doc to version 0:5.4.17-2102.205.7.2.el7uek or higher.
This issue was patched in ELSA-2021-9450.

NVD Description

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

An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.

CVSS Scores

version 3.1