CVE-2020-25581
FreeBSD Security Advisory - FreeBSD-SA-21:04.jail_remove
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In FreeBSD 12.2-STABLE before r369312, 11.4-STABLE before r369313, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 due to a race condition in the jail_remove(2) implementation, it may fail to kill some of the processes.
En FreeBSD versiones 12.2-STABLE anteriores a r369312, 11.4-STABLE anteriores a r369313, 12.2-RELEASE anteriores a p4 y 11.4-RELEASE anteriores a p8, debido a una condición de carrera en la implementación de jail_remove(2), puede cometer un fallo al eliminar algunos de los procesos.
Due to a race condition in the jail_remove(2) implementation, it may fail to kill some of the processes. A process running inside a jail can avoid being killed during jail termination. If a jail is subsequently started with the same root path, a lingering jailed process may be able to exploit the window during which a devfs filesystem is mounted but the jail's devfs ruleset has not been applied, to access device nodes which are ordinarily inaccessible. If the process is privileged, it may be able to escape the jail and gain full access to the system.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-09-14 CVE Reserved
- 2021-02-24 CVE Published
- 2024-08-04 CVE Updated
- 2025-04-06 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (2)
URL | Tag | Source |
---|---|---|
https://security.netapp.com/advisory/ntap-20210423-0006 | Third Party Advisory |
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URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
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https://security.FreeBSD.org/advisories/FreeBSD-SA-21:04.jail_remove.asc | 2021-06-03 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | - |
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p1 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p2 |
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p3 |
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p4 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p5 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p6 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p7 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2" | - |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2" | p1 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2" | p2 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2" | p3 |
Affected
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