CVE-2020-7453
 
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option "osrelease" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory.
En FreeBSD versiones 12.1-ESTABLE anteriores a r359021, versiones 12.1-RELEASE anteriores a 12.1-RELEASE-p3, versiones 11.3-ESTABLE anteriores a r359020 y versiones 11.3-RELEASE anteriores a 11.3-RELEASE-p7, una falta de comprobación de terminación null en la opción de configuración "osrelease" de jail_set puede devolver más bytes con una llamada posterior al sistema jail_get que permite a un superusuario de jaula (jail) malicioso con permiso para crear jaulas (jails) anidadas leer la memoria del kernel.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-01-21 CVE Reserved
- 2020-04-28 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-754: Improper Check for Unusual or Exceptional Conditions
CAPEC
References (1)
URL | Tag | Source |
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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-20:08.jail.asc | 2020-05-06 |
URL | Date | SRC |
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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" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | - |
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p1 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p2 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p3 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p4 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p5 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.3 Search vendor "Freebsd" for product "Freebsd" and version "11.3" | p6 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.1 Search vendor "Freebsd" for product "Freebsd" and version "12.1" | - |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.1 Search vendor "Freebsd" for product "Freebsd" and version "12.1" | p1 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.1 Search vendor "Freebsd" for product "Freebsd" and version "12.1" | p2 |
Affected
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