Vulnerability-Lookup

FKIE_CVE-2018-12617

Vulnerability from fkie_nvd - Published: 2018-06-21 18:29 - Updated: 2026-06-17 01:38

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.

References

URL	Tags
cve@mitre.org	http://www.securityfocus.com/bid/104531	Third Party Advisory, VDB Entry
cve@mitre.org	https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6	Exploit, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html	Mailing List, Patch, Third Party Advisory
cve@mitre.org	https://seclists.org/bugtraq/2019/May/76	Mailing List, Third Party Advisory
cve@mitre.org	https://usn.ubuntu.com/3826-1/	Third Party Advisory
cve@mitre.org	https://www.debian.org/security/2019/dsa-4454	Third Party Advisory
cve@mitre.org	https://www.exploit-db.com/exploits/44925/	Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/104531	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html	Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://seclists.org/bugtraq/2019/May/76	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/3826-1/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2019/dsa-4454	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.exploit-db.com/exploits/44925/	Exploit, Third Party Advisory, VDB Entry

Impacted products

Vendor	Product	Version
qemu	qemu	*
canonical	ubuntu_linux	14.04
canonical	ubuntu_linux	16.04
canonical	ubuntu_linux	18.04
canonical	ubuntu_linux	18.10
debian	debian_linux	8.0
debian	debian_linux	9.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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      "nodes": [
        {
          "cpeMatch": [
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  "cveTags": [],
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    },
    {
      "lang": "es",
      "value": "qmp_guest_file_read en qga/commands-posix.c y qga/commands-win32.c en qemu-ga (tambi\u00e9n conocido como QEMU Guest Agent) en QEMU 2.12.50 tiene un desbordamiento de enteros que provoca que una llamada g_malloc0() desencadene un fallo de segmentaci\u00f3n al intentar asignar un gran fragmento de memoria. La vulnerabilidad puede ser explotada mediante el env\u00edo de un comando QMP manipulado (incluyendo guest-file-read con un valor largo de conteo) al agente mediante el socket en escucha."
    }
  ],
  "id": "CVE-2018-12617",
  "lastModified": "2026-06-17T01:38:04.273",
  "metrics": {
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          "accessVector": "NETWORK",
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          "baseScore": 5.0,
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        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
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          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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    ]
  },
  "published": "2018-06-21T18:29:00.233",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/104531"
    },
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      "source": "cve@mitre.org",
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    {
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      "tags": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "CWE-190"
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      ],
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  ]
}

CVE-2018-12617 (GCVE-0-2018-12617)

Vulnerability from cvelistv5 – Published: 2018-06-21 18:00 – Updated: 2024-08-05 08:38

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://gist.github.com/fakhrizulkifli/c7740d28ef…	x_refsource_MISC
https://usn.ubuntu.com/3826-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.gnu.org/archive/html/qemu-devel/201…	x_refsource_MISC
http://www.securityfocus.com/bid/104531	vdb-entryx_refsource_BID
https://www.exploit-db.com/exploits/44925/	exploitx_refsource_EXPLOIT-DB
https://www.debian.org/security/2019/dsa-4454	vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/May/76	mailing-listx_refsource_BUGTRAQ

Date Public

2018-06-21 00:00

Show details on NVD website

JSON

To clipboard

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}

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.

Detection rules are retrieved from Rulezet.

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.

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.