FKIE_CVE-2016-7908
Vulnerability from fkie_nvd - Published: 2016-10-05 16:59 - Updated: 2026-06-17 00:53
Severity
Summary
The mcf_fec_do_tx function in hw/net/mcf_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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| qemu | qemu | * | |
| debian | debian_linux | 8.0 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
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"matchCriteriaId": "F83E2010-6463-407A-928D-DB71A705A04C",
"versionEndIncluding": "2.7.1",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The mcf_fec_do_tx function in hw/net/mcf_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 mcf_fec_do_tx en hw/net/mcf_fec.c en QEMU (tambi\u00e9n conocido Quick Emulator) no limita adecuadamente el recuento del descriptor de b\u00fafer cuando est\u00e1 transmitiendo 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."
}
],
"id": "CVE-2016-7908",
"lastModified": "2026-06-17T00:53:44.117",
"metrics": {
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{
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"baseSeverity": "LOW",
"cvssData": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.4,
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"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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"published": "2016-10-05T16:59:11.117",
"references": [
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"url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"
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},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "https://security.gentoo.org/glsa/201611-11"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"
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{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.securityfocus.com/bid/93273"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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"Vendor Advisory"
],
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},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://security.gentoo.org/glsa/201611-11"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-835"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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