GSD-2020-8623
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
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
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-8623",
"description": "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",
"id": "GSD-2020-8623",
"references": [
"https://www.suse.com/security/cve/CVE-2020-8623.html",
"https://www.debian.org/security/2020/dsa-4752",
"https://access.redhat.com/errata/RHSA-2020:5203",
"https://access.redhat.com/errata/RHSA-2020:5011",
"https://access.redhat.com/errata/RHSA-2020:4992",
"https://access.redhat.com/errata/RHSA-2020:4500",
"https://ubuntu.com/security/CVE-2020-8623",
"https://linux.oracle.com/cve/CVE-2020-8623.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-8623"
],
"details": "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",
"id": "GSD-2020-8623",
"modified": "2023-12-13T01:21:54.362788Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security-officer@isc.org",
"DATE_PUBLIC": "2020-08-20T18:35:08.000Z",
"ID": "CVE-2020-8623",
"STATE": "PUBLIC",
"TITLE": "A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "BIND9",
"version": {
"version_data": [
{
"version_affected": "\u003e=",
"version_value": "9.10.0"
},
{
"version_affected": "\u003c",
"version_value": "9.11.22"
},
{
"version_affected": "\u003e=",
"version_value": "9.12.0"
},
{
"version_affected": "\u003c",
"version_value": "9.16.6"
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{
"version_affected": "\u003e=",
"version_value": "9.17.0"
},
{
"version_affected": "\u003c",
"version_value": "9.17.4"
},
{
"version_affected": "\u003e=",
"version_name": "Supported Preview",
"version_value": "9.10.5-S1"
},
{
"version_affected": "\u003c",
"version_name": "Supported Preview",
"version_value": "9.11.22-S1"
}
]
}
}
]
},
"vendor_name": "ISC"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "ISC would like to thank Lyu Chiy for bringing this vulnerability to our attention."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"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"
}
]
},
"exploit": [
{
"lang": "eng",
"value": "We are not aware of any active exploits."
}
],
"generator": {
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},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "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 -\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"
}
]
}
]
},
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"url": "https://kb.isc.org/docs/cve-2020-8623"
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"name": "[debian-lts-announce] 20200829 [SECURITY] [DLA 2355-1] bind9 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html"
},
{
"name": "GLSA-202008-19",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202008-19"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_20_19",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_20_19"
},
{
"name": "openSUSE-SU-2020:1699",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
},
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"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
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},
"solution": [
{
"lang": "eng",
"value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n BIND 9.11.22\n BIND 9.16.6\n BIND 9.17.4\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n BIND 9.11.22-S1\n"
}
],
"source": {
"discovery": "UNKNOWN"
},
"work_around": [
{
"lang": "eng",
"value": "No workarounds known."
}
]
},
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"impact": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2022-04-28T18:27Z",
"publishedDate": "2020-08-21T21:15Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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