SB2022032121 - Red Hat Enterprise Linux Advanced Virtualization 8 update for the virt:av and virt-devel:av modules

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Main Vulnerability Database SB2022032121

SB2022032121 - Red Hat Enterprise Linux Advanced Virtualization 8 update for the virt:av and virt-devel:av modules

Published: March 21, 2022

Security Bulletin ID SB2022032121
CSH 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 vulnerability.


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

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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