CVE-2020-25584

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory FreeBSD.org
Affected: n/a FreeBSD
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2020-25584?
CVE-2020-25584 has been scored as a high severity vulnerability.
How to fix CVE-2020-25584?
To fix CVE-2020-25584, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-25584 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-25584 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-25584?
CVE-2020-25584 affects n/a FreeBSD.
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