SB2022030320 - Red Hat Enterprise Linux Server 7.7 update for kpatch-patch 

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Main Vulnerability Database SB2022030320

SB2022030320 - Red Hat Enterprise Linux Server 7.7 update for kpatch-patch

Published: March 3, 2022

Security Bulletin ID SB2022030320
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-4155)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to the OS kernel does not impose correctly security restrictions. A local user can gain access to sensitive information on the system.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-0466)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to unspecified error, related to I/O subsystem in kernel. A local user can elevated privileges on the system.


3) Buffer overflow (CVE-ID: CVE-2022-0330)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a random memory access flaw caused by a missing TLB flush in Linux kernel GPU i915 kernel driver functionality. A local user can execute arbitrary code on the system with elevated privileges.


Remediation

Install update from vendor's website.

References