FKIE_CVE-2020-6080

Vulnerability from fkie_nvd - Published: 2020-03-24 21:15 - Updated: 2024-11-21 05:35
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].
References
talos-cna@cisco.comhttps://security.gentoo.org/glsa/202005-10Third Party Advisory
talos-cna@cisco.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1002Exploit, Technical Description, Third Party Advisory
talos-cna@cisco.comhttps://www.debian.org/security/2020/dsa-4671Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202005-10Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4671Third Party Advisory
Impacted products
Vendor Product Version
videolabs libmicrodns 0.1.0
debian debian_linux 9.0
debian debian_linux 10.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6]."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio explotable en el manejo de asignaci\u00f3n de recursos de Videolabs libmicrodns versi\u00f3n 0.1.0. Cuando se encuentran errores mientras se analiza  mensajes mDNS, algunos datos asignados no son liberados, posiblemente conlleve a una condici\u00f3n de denegaci\u00f3n de servicio por agotamiento de recursos. Un atacante puede enviar un mensaje mDNS repetidas veces para desencadenar esta vulnerabilidad por medio de la funci\u00f3n rr_read_RR [5] que lee el registro de recursos actual, a excepci\u00f3n para la secci\u00f3n RDATA. Esto se lee por el bucle en rr_read. Para cada tipo RR, una funci\u00f3n diferente es llamada. Cuando el tipo RR es 0x10, la funci\u00f3n rr_read_TXT se llama en [6]."
    }
  ],
  "id": "CVE-2020-6080",
  "lastModified": "2024-11-21T05:35:03.363",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
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  "published": "2020-03-24T21:15:14.473",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
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  ]
}


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