FKIE_CVE-2017-2620
Vulnerability from fkie_nvd - Published: 2018-07-27 19:29 - Updated: 2026-06-17 01:16
Severity
5.5 (Medium) - CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
9.9 (Critical) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.9 (Critical) - CVSS:3.0/
Summary
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| qemu | qemu | * | |
| citrix | xenserver | 6.0.2 | |
| citrix | xenserver | 6.2.0 | |
| citrix | xenserver | 6.5 | |
| citrix | xenserver | 7.0 | |
| citrix | xenserver | 7.1 | |
| redhat | openstack | 5.0 | |
| redhat | openstack | 6.0 | |
| redhat | openstack | 7.0 | |
| redhat | openstack | 8 | |
| redhat | openstack | 9 | |
| redhat | openstack | 10 | |
| debian | debian_linux | 7.0 | |
| redhat | enterprise_linux_desktop | 6.0 | |
| redhat | enterprise_linux_desktop | 7.0 | |
| redhat | enterprise_linux_server | 6.0 | |
| redhat | enterprise_linux_server | 7.0 | |
| redhat | enterprise_linux_server_aus | 7.3 | |
| redhat | enterprise_linux_server_aus | 7.4 | |
| redhat | enterprise_linux_server_eus | 7.3 | |
| redhat | enterprise_linux_server_eus | 7.4 | |
| redhat | enterprise_linux_server_eus | 7.5 | |
| redhat | enterprise_linux_workstation | 6.0 | |
| redhat | enterprise_linux_workstation | 7.0 | |
| xen | xen | * | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 | |
| xen | xen | 4.7.1 |
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"source": "secalert@redhat.com"
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{
"lang": "en",
"value": "Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process."
},
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"lang": "es",
"value": "Quick emulator (QEMU) en versiones anteriores a la 2.8 construido con el soporte del emulador Cirrus CLGD 54xx VGA Emulator es vulnerable a un problema de acceso fuera de l\u00edmites. El problema puede ocurrir al copiar datos VGA en cirrus_bitblt_cputovideo. Un usuario privilegiado dentro de guest podr\u00eda usar esta vulnerabilidad para bloquear el proceso de QEMU o potencialmente ejecutar c\u00f3digo arbitrario en el host con privilegios del proceso de QEMU."
}
],
"id": "CVE-2017-2620",
"lastModified": "2026-06-17T01:16:31.500",
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"published": "2018-07-27T19:29:00.330",
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"vulnStatus": "Modified",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-125"
},
{
"lang": "en",
"value": "CWE-787"
}
],
"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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