Out-of-bounds Write Affecting kernel-uek-devel package, versions <0:5.4.17-2136.312.3.4.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKDEVEL-2847621
  • published25 May 2022
  • disclosed9 Jun 2022

Introduced: 25 May 2022

CVE-2022-21499  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-devel to version 0:5.4.17-2136.312.3.4.el8uek or higher.
This issue was patched in ELSA-2022-9926.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

version 3.1