CVE-2018-7550 (GCVE-0-2018-7550)
Vulnerability from cvelistv5 – Published: 2018-03-01 00:00 – Updated: 2024-08-05 06:31
VLAI
EPSS
VEX
Summary
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
Severity
8.8 (High)
CWE
- n/a
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2018:1369 | vendor-advisory |
| https://lists.gnu.org/archive/html/qemu-devel/201… | mailing-list |
| https://lists.debian.org/debian-lts-announce/2018… | mailing-list |
| https://usn.ubuntu.com/3649-1/ | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2018… | mailing-list |
| https://www.debian.org/security/2018/dsa-4213 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2018… | mailing-list |
| http://www.securityfocus.com/bid/103181 | vdb-entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1549798 | |
| https://access.redhat.com/errata/RHSA-2018:2462 | vendor-advisory |
| https://github.com/orangecertcc/security-research… |
Date Public
2018-02-28 00:00
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"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
"matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*",
"matchCriteriaId": "7431ABC1-9252-419E-8CC1-311B41360078",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"matchCriteriaId": "A4E9DD8A-A68B-4A69-8B01-BFF92A2020A8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*",
"matchCriteriaId": "BF77CDCF-B9C9-427D-B2BF-36650FB2148C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:*",
"matchCriteriaId": "21690BAC-2129-4A33-9B48-1F3BF30072A9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*",
"matchCriteriaId": "B76AA310-FEC7-497F-AF04-C3EC1E76C4CC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*",
"matchCriteriaId": "17F256A9-D3B9-4C72-B013-4EFD878BFEA8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access."
},
{
"lang": "es",
"value": "La funci\u00f3n load_multiboot en hw/i386/multiboot.c en Quick Emulator (tambi\u00e9n conocido como QEMU) permite que usuarios locales invitados del sistema operativo ejecuten c\u00f3digo arbitrario en el host QEMU mediante un valor mh_load_end_addr mayor que mh_bss_end_addr. Esto desencadena un acceso de lectura o escritura a la memoria fuera de l\u00edmites."
}
],
"id": "CVE-2018-7550",
"lastModified": "2024-11-21T04:12:20.860",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-03-01T17:29:00.523",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103181"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1369"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:2462"
},
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1549798"
},
{
"source": "cve@mitre.org",
"url": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/04/msg00015.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
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],
"url": "https://lists.debian.org/debian-lts-announce/2018/04/msg00016.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Patch"
],
"url": "https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3649-1/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4213"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103181"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1369"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2018:2462"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1549798"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/04/msg00015.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/04/msg00016.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch"
],
"url": "https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3649-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4213"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
},
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T11:24:16+00:00",
"cve": "CVE-2018-7550",
"id": "CVE-2018-7550",
"initial_release_date": "2018-02-27T00:00:00+00:00",
"product_status:fixed": "64",
"product_status:known_affected": "9",
"product_status:known_not_affected": "29",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "QEMU: i386: multiboot OOB access while loading kernel image",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7550.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-15T02:37:44Z",
"cve": "CVE-2018-7550",
"id": "CVE-2018-7550",
"initial_release_date": "2023-02-15T04:29:35Z",
"product_status:known_affected": "70",
"product_status:known_not_affected": "419",
"product_status:recommended": "1817",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2018-7550",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-7550.json",
"version": "26"
}
}
}
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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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