ghsa-5m22-hqfx-435p
Vulnerability from github
Published
2022-05-14 00:58
Modified
2022-05-14 00:58
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-20102"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-12T17:29:00Z",
    "severity": "HIGH"
  },
  "details": "An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.",
  "id": "GHSA-5m22-hqfx-435p",
  "modified": "2022-05-14T00:58:33Z",
  "published": "2022-05-14T00:58:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20102"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHBA-2019:0326"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHBA-2019:0327"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1436"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3858-1"
    },
    {
      "type": "WEB",
      "url": "http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106223"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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