CVE-2020-25584 Information

Description

In FreeBSD 13.0-STABLE before n245118 12.2-STABLE before r369552 11.4-STABLE before r369560 13.0-RC5 before p1 12.2-RELEASE before p6 and 11.4-RELEASE before p9 a superuser inside a FreeBSD jail configured with the non-default allow.mount permission could cause a race condition between the lookup of ..\ and remounting a filesystem allowing access to filesystem hierarchy outside of the jail.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Reference

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.asc https://security.netapp.com/advisory/ntap-20210423-0009/

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5