<p>Upgrade <code>RHEL:8</code> <code>kernel-debug</code> to version 0:4.18.0-372.111.1.el8_6 or higher.<br>This issue was patched in <code>RHSA-2024:4447</code>.</p>

NULL Pointer Dereference Affecting kernel-debug package, versions <0:4.18.0-372.111.1.el8_6

Threat Intelligence

0.15% (52^nd percentile)

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Snyk ID SNYK-RHEL8-KERNELDEBUG-7441239
published 11 Jul 2024
disclosed 25 May 2022

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Introduced: 25 May 2022

CVE-2022-1789 Open this link in a new tab CWE-476 Open this link in a new tab

How to fix?

Upgrade RHEL:8 kernel-debug to version 0:4.18.0-372.111.1.el8_6 or higher.
This issue was patched in RHSA-2024:4447.

NVD Description

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

With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Physical
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

NULL Pointer Dereference Affecting kernel-debug package, versions <0:4.18.0-372.111.1.el8_6

Severity

Based on Red Hat Enterprise Linux security rating