CVE-2023-5517 (GCVE-0-2023-5517)

Vulnerability from cvelistv5 – Published: 2024-02-13 14:04 – Updated: 2025-02-13 17:25
VLAI
Title
Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is enabled
Summary
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.12.0 , ≤ 9.16.45 (custom)
Affected: 9.18.0 , ≤ 9.18.21 (custom)
Affected: 9.19.0 , ≤ 9.19.19 (custom)
Affected: 9.16.8-S1 , ≤ 9.16.45-S1 (custom)
Affected: 9.18.11-S1 , ≤ 9.18.21-S1 (custom)
Create a notification for this product.
isc bind_9 Affected: 9.12.0 , ≤ 9.16.45 (custom)
Affected: 9.18.0 , ≤ 9.18.21 (custom)
Affected: 9.19.0 , ≤ 9.19.19 (custom)
Affected: 9.16.8-S1 , ≤ 9.16.45-S1 (custom)
Affected: 9.18.11-S1 , ≤ 9.18.21-S1 (custom)
    cpe:2.3:a:isc:bind_9:*:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2024-02-13 00:00
Show details on NVD website
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    },
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      "initial_release_date": "2024-02-02T08:00:00.000Z",
      "product_status:fixed": "3",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Querying RFC 1918 reverse zones may cause an assertion failure when \"nxdomain-redirect\" is enabled",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2023-5517.json",
      "version": "5"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-5517\",\"sourceIdentifier\":\"security-officer@isc.org\",\"published\":\"2024-02-13T14:15:45.510\",\"lastModified\":\"2026-06-17T06:48:45.103\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:\\n\\n  - `nxdomain-redirect \u003cdomain\u003e;` is configured, and\\n  - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.\\nThis issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.\"},{\"lang\":\"es\",\"value\":\"Una falla en el c\u00f3digo de manejo de consultas puede causar que `named` se cierre prematuramente con un error de aserci\u00f3n cuando: - `nxdomain-redirect ;` est\u00e1 configurado, y - el solucionador recibe una consulta PTR para una direcci\u00f3n RFC 1918 que normalmente dar como resultado una respuesta NXDOMAIN autorizada. Este problema afecta a las versiones de BIND 9, 9.12.0 a 9.16.45, 9.18.0 a 9.18.21, 9.19.0 a 9.19.19, 9.16.8-S1 a 9.16.45-S1 y 9.18.11-S1 a 9.18. .21-S1.\"}],\"affected\":[{\"source\":\"security-officer@isc.org\",\"affectedData\":[{\"vendor\":\"ISC\",\"product\":\"BIND 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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-04-22T16:35:42+00:00",
      "cve": "CVE-2023-5517",
      "id": "CVE-2023-5517",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "828",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "47",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind9: Querying RFC 1918 reverse zones may cause an assertion failure when \u201cnxdomain-redirect\u201d is enabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-5517.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-15T20:19:24Z",
      "cve": "CVE-2023-5517",
      "id": "CVE-2023-5517",
      "initial_release_date": "2024-02-17T03:27:23Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "116",
      "product_status:recommended": "449",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-5517",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-5517.json",
      "version": "51"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://kb.isc.org/docs/cve-2023-5517\", \"name\": \"CVE-2023-5517\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/02/13/1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/\", 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\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240503-0006/\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Disabling the `nxdomain-redirect` feature makes the faulty code path impossible to reach, preventing this flaw from being exploitable.\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:\\n\\n  - `nxdomain-redirect \u003cdomain\u003e;` is configured, and\\n  - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.\\nThis issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.\"}], \"providerMetadata\": {\"orgId\": \"404fd4d2-a609-4245-b543-2c944a302a22\", \"shortName\": \"isc\", \"dateUpdated\": \"2024-05-03T13:06:16.924Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-5517\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T17:25:39.556Z\", \"dateReserved\": \"2023-10-11T07:02:42.359Z\", \"assignerOrgId\": \"404fd4d2-a609-4245-b543-2c944a302a22\", \"datePublished\": \"2024-02-13T14:04:54.389Z\", \"assignerShortName\": \"isc\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.