#VU62735 Incorrect permission assignment for critical resource in libvirt - CVE-2021-3631

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Main Vulnerability Database Vulnerabilities #VU62735

#VU62735 Incorrect permission assignment for critical resource in libvirt - CVE-2021-3631

Published: May 3, 2022


Vulnerability identifier: #VU62735
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3631
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
libvirt
Software vendor:
libvirt.org

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to an error in the way SELinux MCS category pairs for VMs' dynamic labels in security/security_selinux.c. An attacker with access to the guest OS can access files labeled for another guest.


Remediation

Install updates from vendor's website.

External links