FKIE_CVE-2022-0934

Vulnerability from fkie_nvd - Published: 2022-08-29 15:15 - Updated: 2026-06-17 04:21
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
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2022-0934Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2057075Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.htmlMailing List, Vendor Advisory
secalert@redhat.comhttps://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39Broken Link
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2022-0934Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2057075Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
af854a3a-2127-422b-91ae-364da2661108https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.htmlMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39Broken Link
Impacted products
Vendor Product Version
thekelleys dnsmasq *
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "dnsmasq",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Not-Known"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D7313DE5-EF30-46AC-81F4-5F28B7F2F1AA",
              "versionEndExcluding": "2.87",
              "vulnerable": true
            }
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          "negate": false,
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            }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service."
    },
    {
      "lang": "es",
      "value": "En dnsmasq ha sido encontrado un fallo de escritura/uso de memoria previamente liberada de un byte no arbitrario. Este fallo permite a un atacante que env\u00ede un paquete dise\u00f1ado procesado por dnsmasq, causando potencialmente una denegaci\u00f3n de servicio"
    }
  ],
  "id": "CVE-2022-0934",
  "lastModified": "2026-06-17T04:21:30.397",
  "metrics": {
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          "availabilityImpact": "HIGH",
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          "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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          "userInteraction": "NONE",
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            {
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          "role": "CISA Coordinator",
          "timestamp": "2025-06-10T13:19:58.915127Z",
          "version": "2.0.3"
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  "published": "2022-08-29T15:15:10.087",
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    },
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    },
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    },
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
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        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Secondary"
    }
  ]
}



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