CVE-2021-29631
 
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious guest may cause the device model to operate on uninitialized I/O vectors leading to memory corruption, crashing of the bhyve process, and possibly arbitrary code execution in the bhyve process.
En FreeBSD versiones 13.0-STABLE anteriores a n246941-20f96f215562, 12.2-STABLE anteriores a r370400, 11.4-STABLE anteriores a r370399, 13.0-RELEASE anteriores a p4, 12.2-RELEASE anteriores a p10, y 11.4-RELEASE anteriores a p13, determinados modelos de dispositivos basados en VirtIO en bhyve presentaban un fallo al manejar los errores cuando se obtenían descriptores de E/S. Un huésped malicioso puede causar al modelo de dispositivo operar en vectores de E/S no inicializados, conllevando a una corrupción de la memoria, un bloqueo del proceso bhyve y, posiblemente, una ejecución de código arbitrario en el proceso bhyve.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-03-30 CVE Reserved
- 2021-08-30 CVE Published
- 2023-03-23 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-908: Use of Uninitialized Resource
CAPEC
References (2)
URL | Tag | Source |
---|---|---|
https://security.netapp.com/advisory/ntap-20210923-0004 | Third Party Advisory |
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-21:13.bhyve.asc | 2021-12-14 |
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 |
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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" | p10 |
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" | p11 |
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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" | p12 |
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" | p13 |
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 |
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" | p3 |
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" | 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" | 11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4" | p8 |
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" | p9 |
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" | p10 |
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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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2" | p4 |
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" | p5 |
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" | p6 |
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" | 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" | p8 |
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" | p9 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0" | - |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0" | p1 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0" | p2 |
Affected
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Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0" | p3 |
Affected
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