CVE-2016-7907

The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

CVSS v3 4.4 MEDIUM
CVSS v2.0 2.1 LOW

4.4^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

V2 Legend

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/4	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93274	Third Party Advisory VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html	Mailing List Patch Vendor Advisory
https://security.gentoo.org/glsa/201611-11	Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/4	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93274	Third Party Advisory VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html	Mailing List Patch Vendor Advisory
https://security.gentoo.org/glsa/201611-11	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:qemu:qemu::::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc0::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc1::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc2::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc3::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc4::::::
	cpe:2.3:a:qemu:qemu:2.9.0:rc5::::::

History

21 Nov 2024, 02:58

Type	Values Removed	Values Added
References	~~() http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html - Mailing List, Third Party Advisory~~	() http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html - Mailing List, Third Party Advisory
References	~~() http://www.openwall.com/lists/oss-security/2016/10/03/1 - Mailing List, Third Party Advisory~~	() http://www.openwall.com/lists/oss-security/2016/10/03/1 - Mailing List, Third Party Advisory
References	~~() http://www.openwall.com/lists/oss-security/2016/10/03/4 - Mailing List, Third Party Advisory~~	() http://www.openwall.com/lists/oss-security/2016/10/03/4 - Mailing List, Third Party Advisory
References	~~() http://www.securityfocus.com/bid/93274 - Third Party Advisory, VDB Entry~~	() http://www.securityfocus.com/bid/93274 - Third Party Advisory, VDB Entry
References	~~() https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html - Mailing List, Patch, Vendor Advisory~~	() https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html - Mailing List, Patch, Vendor Advisory
References	~~() https://security.gentoo.org/glsa/201611-11 - Third Party Advisory~~	() https://security.gentoo.org/glsa/201611-11 - Third Party Advisory

Information

Published : 2016-10-05 16:59

Updated : 2024-11-21 02:58

NVD link : CVE-2016-7907

Mitre link : CVE-2016-7907

CVE.ORG link : CVE-2016-7907

JSON object : View

Products Affected

qemu

qemu

CWE

CWE-20

Improper Input Validation

CWE-399

Resource Management Errors

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"NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.8}]}, "published": "2016-10-05T16:59:10.070", "references": [{"url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/03/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/03/4", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/93274", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://security.gentoo.org/glsa/201611-11", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/03/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/03/4", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/93274", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/201611-11", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-399"}]}], "descriptions": [{"lang": "en", "value": "The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."}, {"lang": "es", "value": "La funci\u00f3n imx_fec_do_tx function in hw/net/imx_fec.c en QEMU (tambi\u00e9n conocido como Quick Emulator) no limita adecuadamente el recuento del descriptor de b\u00fafer cuando trasmite paquetes, lo que permite a administradores locales del SO invitado provocar una denegaci\u00f3n de servicio (bucle infinito y ca\u00edda del proceso QEMU) a trav\u00e9s de vectores relacionados con un descriptor de b\u00fafer con una longitud de 0 y valores manipulados en bd.flags."}], "lastModified": "2024-11-21T02:58:41.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A965C2D1-C447-4324-95A4-27285ECF8909", "versionEndIncluding": "2.8.1.1"}, {"criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F615830-8EC7-41C0-9A77-6C7D4E718429"}, {"criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15D5C1F9-C3B4-4733-8782-0E54AE543C16"}, {"criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "286D3DE9-9796-42AE-88E1-F6E04BF8B449"}, {"criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B54248FC-FD5C-445E-BD8F-886D9D8736D6"}, {"criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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4.4 /10

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1 /10

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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