CVE-2020-8623 (GCVE-0-2020-8623)

Vulnerability from cvelistv5 – Published: 2020-08-21 20:50 – Updated: 2024-09-17 03:19
VLAI
Title
A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c
Summary
In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • If BIND is built with "--enable-native-pkcs11" then a specially crafted query for a zone signed with RSA can trigger an assertion failure. Affects BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition
Assigner
isc CNA under the mitre root
CNA scorecard A 95/100 over 29 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ISC BIND9 Affected: 9.10.0 , < unspecified (custom)
Affected: unspecified , < 9.11.22 (custom)
Affected: 9.12.0 , < unspecified (custom)
Affected: unspecified , < 9.16.6 (custom)
Affected: 9.17.0 , < unspecified (custom)
Affected: unspecified , < 9.17.4 (custom)
Affected: 9.10.5-S1 , < Supported Preview* (custom)
guessed Create a notification for this product.
Date Public
2020-08-20 00:00
Credits
ISC would like to thank Lyu Chiy for bringing this vulnerability to our attention.
Show details on NVD website
To clipboard 

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            "lang": "en",
            "value": "In BIND 9.10.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.10.5-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with \"--enable-native-pkcs11\" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker"
          },
          {
            "lang": "es",
            "value": "En BIND versiones 9.10.0 -) 9.11.21, 9.12.0 -) 9.16.5, 9.17.0 -) 9.17.3, tambi\u00e9n afecta a versiones 9.10.5-S1 -) 9.11.21-S1 de BIND 9 Supported Preview Edition, un atacante que puede llegar a un sistema vulnerable con un paquete de consulta especialmente dise\u00f1ado puede desencadenar un bloqueo. Para ser vulnerable, el sistema debe: * estar ejecutando BIND que fue creado con \"--enable-native-pkcs11\" * estar firmando una o m\u00e1s zonas con una clave RSA * ser capaz de recibir consultas de un posible atacante"
          }
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        "id": "CVE-2020-8623",
        "lastModified": "2024-11-21T05:39:08.767",
        "metrics": {
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              "baseSeverity": "MEDIUM",
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                "accessVector": "NETWORK",
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              "exploitabilityScore": 8.6,
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              "source": "nvd@nist.gov",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "source": "security-officer@isc.org",
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    "redhat_vex": {
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      "current_release_date": "2025-11-21T14:51:27+00:00",
      "cve": "CVE-2020-8623",
      "id": "CVE-2020-8623",
      "initial_release_date": "2020-08-20T00:00:00+00:00",
      "product_status:fixed": "1739",
      "product_status:known_not_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind: remotely triggerable assertion failure in pk11.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-8623.json",
      "version": "3"
    }
  }
}



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