CVE-2021-29631

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.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc	Vendor Advisory
https://security.netapp.com/advisory/ntap-20210923-0004/	Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc	Vendor Advisory
https://security.netapp.com/advisory/ntap-20210923-0004/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:freebsd:freebsd:11.4:-::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p1::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p10::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p11::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p12::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p13::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p2::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p3::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p4::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p5::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p6::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p7::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p8::::::
	cpe:2.3:o:freebsd:freebsd:11.4:p9::::::
	cpe:2.3:o:freebsd:freebsd:12.2:-::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p1::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p10::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p2::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p3::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p4::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p5::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p6::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p7::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p8::::::
	cpe:2.3:o:freebsd:freebsd:12.2:p9::::::
	cpe:2.3:o:freebsd:freebsd:13.0:-::::::
	cpe:2.3:o:freebsd:freebsd:13.0:p1::::::
	cpe:2.3:o:freebsd:freebsd:13.0:p2::::::
	cpe:2.3:o:freebsd:freebsd:13.0:p3::::::

History

21 Nov 2024, 06:01

Type	Values Removed	Values Added
References	~~() https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc - Vendor Advisory~~	() https://security.FreeBSD.org/advisories/FreeBSD-SA-21:13.bhyve.asc - Vendor Advisory
References	~~() https://security.netapp.com/advisory/ntap-20210923-0004/ - Third Party Advisory~~	() https://security.netapp.com/advisory/ntap-20210923-0004/ - Third Party Advisory

Information

Published : 2021-08-30 18:15

Updated : 2024-11-21 06:01

NVD link : CVE-2021-29631

Mitre link : CVE-2021-29631

CVE.ORG link : CVE-2021-29631

JSON object : View

Products Affected

freebsd

freebsd

CWE

CWE-908

Use of Uninitialized Resource

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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."}, {"lang": "es", "value": "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 obten\u00edan descriptores de E/S. Un hu\u00e9sped malicioso puede causar al modelo de dispositivo operar en vectores de E/S no inicializados, conllevando a una corrupci\u00f3n de la memoria, un bloqueo del proceso bhyve y, posiblemente, una ejecuci\u00f3n de c\u00f3digo arbitrario en el proceso bhyve."}], "lastModified": "2024-11-21T06:01:32.053", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A865EA1-01D7-4E5A-9D13-80780F8A9D7A"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9FCA6A72-2A72-45FD-A43D-B5BF7C329121"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1E296FC-EFF0-4F78-9481-DF24A94279D5"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E550DC6-D276-4F68-A842-A39A4D525E11"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p12:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "04E8D3A9-9330-4DFE-9D6B-547C2D765EB7"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p13:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EBBAD78B-A0CA-4A38-9BEC-62230DED4589"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90F9B3CB-3B60-4AA8-9EAF-4F0BE7D27691"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C04EE177-C7D1-4049-B680-F961A27C677F"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "218AF216-7B03-4C02-B55F-2316AF14074B"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "33266717-0359-4243-868B-B84436E2A89E"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "99965487-D5FD-4507-A43B-F241FEEA5237"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "050F0B6A-4674-45E9-A079-60A68CFA4D25"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E71B99C2-EECE-43F9-A66E-CF4B3A94A57D"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C75EF084-153F-4418-AC4B-0C2EAA431243"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62A178A3-6A52-4981-9A27-FB07AD8AF778"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C2FC0BA-0116-43C2-A497-9157B1B9D55E"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54A487B1-E5CE-4C76-87E8-518D24C5D86D"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F084CAB-D138-4BF6-ABC2-2314F0FDE0D1"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C232CA9-FC15-4596-AA99-74509A714C12"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "25BD9C03-6219-49EB-B503-CD44A3B9AA0A"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "900755CC-07EF-4799-B5B4-F3762B3650E8"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C33002B-9958-4714-A734-066F36DE9040"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "562CEDBA-8BAE-4886-8AA3-AFF8E7F5A9C6"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "37283D43-72DD-4FF9-BDBC-61B92051084B"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "174265E7-6B73-4546-B4C7-3826C7EB5624"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "04A0E266-714C-4753-A652-A51F25582C78"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "556111A1-C236-4DF6-9438-F9C874451A58"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.0:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1673F16B-463A-492C-B66F-48917008F7F5"}], "operator": "OR"}]}], "sourceIdentifier": "secteam@freebsd.org"}

7.8 /10