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oesa-2024-2232
Vulnerability from osv_openeuler
Published
2024-10-12 11:07
Modified
2026-08-06 11:07
Summary
unbound security update
Details

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most platforms such as FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows. Unbound is a totally free, open source software under the BSD license. It doesn't make custom builds or provide specific features to paying customers only.

Security Fix(es):

The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the "DNSBomb" issue.(CVE-2024-33655)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python3-unbound-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-anchor-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-debuginfo-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-debugsource-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-devel-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-help-1.13.2-15.oe2203sp3.aarch64.rpm",
          "unbound-libs-1.13.2-15.oe2203sp3.aarch64.rpm"
        ],
        "src": [
          "unbound-1.13.2-15.oe2203sp3.src.rpm"
        ],
        "x86_64": [
          "python3-unbound-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-anchor-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-debuginfo-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-debugsource-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-devel-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-help-1.13.2-15.oe2203sp3.x86_64.rpm",
          "unbound-libs-1.13.2-15.oe2203sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP3",
        "name": "unbound",
        "purl": "pkg:rpm/openEuler/unbound\u0026distro=openEuler-22.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.2-15.oe2203sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most platforms such as FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows. Unbound is a totally free, open source software under the BSD license. It doesn\u0026apos;t make custom builds or provide specific features to paying customers only.\r\n\r\nSecurity Fix(es):\r\n\r\nThe DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the \u0026quot;DNSBomb\u0026quot; issue.(CVE-2024-33655)",
  "id": "OESA-2024-2232",
  "modified": "2026-08-06T11:07:42Z",
  "published": "2024-10-12T11:07:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2232"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33655"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "unbound security update",
  "upstream": [
    "CVE-2024-33655"
  ]
}



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