FKIE_CVE-2017-7539

Vulnerability from fkie_nvd - Published: 2018-07-26 14:29 - Updated: 2026-06-17 01:24
Summary
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2017/07/21/4Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/99944Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:2628Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3466Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3470Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3471Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3472Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3473Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:3474Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
secalert@redhat.comhttps://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/07/21/4Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99944Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:2628Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3466Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3470Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3471Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3472Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3473Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:3474Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
af854a3a-2127-422b-91ae-364da2661108https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Qemu",
          "vendor": "QEMU",
          "versions": [
            {
              "status": "affected",
              "version": "2.10.1"
            }
          ]
        }
      ],
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server\u0027s initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un fallo de aserci\u00f3n en Qemu en versiones anteriores a la 2.10.1 en la negociaci\u00f3n de conexi\u00f3n inicial de los servidores de NBD (Network Block Device) en el que la corrutina I/O no estaba definida. Esto podr\u00eda provocar el cierre inesperado del servidor qemu-nbd si un cliente env\u00eda datos no esperados durante la negociaci\u00f3n de la conexi\u00f3n. Un proceso o usuario remoto podr\u00eda utilizar este fallo para provocar el cierre inesperado del servidor qemu-nbd, resultando en una denegaci\u00f3n de servicio (DoS)."
    }
  ],
  "id": "CVE-2017-7539",
  "lastModified": "2026-06-17T01:24:33.920",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    ],
    "cvssMetricV30": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.0"
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        "source": "secalert@redhat.com",
        "type": "Secondary"
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2018-07-26T14:29:00.420",
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}



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