ghsa-v3pf-fvxp-8mjf
Vulnerability from github
Published
2022-05-13 01:38
Modified
2022-05-13 01:38
Details

An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2016-7069"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-09-11T13:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.",
  "id": "GHSA-v3pf-fvxp-8mjf",
  "modified": "2022-05-13T01:38:41Z",
  "published": "2022-05-13T01:38:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-7069"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7069"
    },
    {
      "type": "WEB",
      "url": "https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100509"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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