SB2022032130 - Red Hat Enterprise Linux 8.4 update for the virt:rhel and virt-devel:rhel modules 

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Main Vulnerability Database SB2022032130

SB2022032130 - Red Hat Enterprise Linux 8.4 update for the virt:rhel and virt-devel:rhel modules

Published: March 21, 2022

Security Bulletin ID SB2022032130
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Incorrect default permissions (CVE-ID: CVE-2022-0358)

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

The vulnerability exists due to incorrect QEMU virtio-fs shared file system daemon (virtiofsd) implementation. An attacker on the guest OS can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This can lead to privilege escalation within the guest OS.

The vulnerability exists due to incomplete fox for #VU13631 (CVE-2018-13405).


Remediation

Install update from vendor's website.

References