gsd-2020-8622
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-8622",
"description": "In BIND 9.0.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.9.3-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.",
"id": "GSD-2020-8622",
"references": [
"https://www.suse.com/security/cve/CVE-2020-8622.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://access.redhat.com/errata/RHSA-2020:4183",
"https://ubuntu.com/security/CVE-2020-8622",
"https://advisories.mageia.org/CVE-2020-8622.html",
"https://alas.aws.amazon.com/cve/html/CVE-2020-8622.html",
"https://linux.oracle.com/cve/CVE-2020-8622.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-8622"
],
"details": "In BIND 9.0.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.9.3-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.",
"id": "GSD-2020-8622",
"modified": "2023-12-13T01:21:54.012280Z",
"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-2020-8622",
"STATE": "PUBLIC",
"TITLE": "A truncated TSIG response can lead to an assertion failure"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "BIND9",
"version": {
"version_data": [
{
"version_affected": "\u003e=",
"version_value": "9.0.0"
},
{
"version_affected": "\u003c",
"version_value": "9.11.22"
},
{
"version_affected": "\u003e=",
"version_value": "9.12.0"
},
{
"version_affected": "\u003c",
"version_value": "9.16.6"
},
{
"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": "9.9.3-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 Dave Feldman, Jeff Warren, and Joel Cunningham of Oracle 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 9.0.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.9.3-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit."
}
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},
"exploit": [
{
"lang": "eng",
"value": "We are not aware of any active exploits"
}
],
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Attempting to verify a truncated response to a TSIG-signed request leads to an assertion failure. Affects BIND 9.0.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.9.3-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition"
}
]
}
]
},
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"url": "https://kb.isc.org/docs/cve-2020-8622"
},
{
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"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/"
},
{
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},
{
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"url": "https://usn.ubuntu.com/4468-2/"
},
{
"name": "DSA-4752",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2020/dsa-4752"
},
{
"name": "FEDORA-2020-14c194e5af",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/"
},
{
"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"
},
{
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"url": "https://security.gentoo.org/glsa/202008-19"
},
{
"name": "openSUSE-SU-2020:1699",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
},
{
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"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
},
{
"name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200827-0003/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20200827-0003/"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_20_19",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_20_19"
}
]
},
"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": "USER"
},
"work_around": [
{
"lang": "eng",
"value": "No workarounds known."
}
]
},
"nvd.nist.gov": {
"configurations": {
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2021-12-02T22:19Z",
"publishedDate": "2020-08-21T21:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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