cvelist/2017/3xxx/CVE-2017-3145.json

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{
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"CVE_data_meta": {
"ASSIGNER": "security-officer@isc.org",
"DATE_PUBLIC": "2018-01-16T00:00:00.000Z",
"ID": "CVE-2017-3145",
"STATE": "PUBLIC",
"TITLE": "Improper fetch cleanup sequencing in the resolver can cause named to crash"
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},
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"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "BIND 9",
"version": {
"version_data": [
{
"version_value": "9.0.0 to 9.8.x, 9.9.0 to 9.9.11, 9.10.0 to 9.10.6, 9.11.0 to 9.11.2, 9.9.3-S1 to 9.9.11-S1, 9.10.5-S1 to 9.10.6-S1, 9.12.0a1 to 9.12.0rc1"
}
]
}
}
]
},
"vendor_name": "ISC"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "ISC would like to thank Jayachandran Palanisamy of Cygate AB for making us aware of this vulnerability."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "BIND was improperly sequencing cleanup operations on upstream recursion fetch contexts, leading in some cases to a use-after-free error that can trigger an assertion failure and crash in named. Affects BIND 9.0.0 to 9.8.x, 9.9.0 to 9.9.11, 9.10.0 to 9.10.6, 9.11.0 to 9.11.2, 9.9.3-S1 to 9.9.11-S1, 9.10.5-S1 to 9.10.6-S1, 9.12.0a1 to 9.12.0rc1."
}
]
},
"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
}
},
"problemtype": {
"problemtype_data": [
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{
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"description": [
{
"lang": "eng",
"value": "While this bug has existed in BIND since 9.0.0, there are no known code paths leading to it in ISC releases prior to those containing the fix for CVE-2017-3137. Thus while all instances of BIND ought to be patched, only ISC versions [9.9.9-P8 to 9.9.11, 9.10.4-P8 to 9.10.6, 9.11.0-P5 to 9.11.2, 9.9.9-S10 to 9.9.11-S1, 9.10.5-S1 to 9.10.6-S1, and 9.12.0a1 to 9.12.0rc1] acting as DNSSEC validating resolvers are currently known to crash due to this bug. The known crash is an assertion failure in netaddr.c."
}
]
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}
]
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},
"references": {
"reference_data": [
{
"name": "https://kb.isc.org/docs/aa-01542",
"refsource": "CONFIRM",
"url": "https://kb.isc.org/docs/aa-01542"
}
]
},
"solution": [
{
"lang": "eng",
"value": "Upgrade to the patched release most closely related to your current version of BIND. These can all be downloaded from http://www.isc.org/downloads.\n\n BIND 9 version 9.9.11-P1\n BIND 9 version 9.10.6-P1\n BIND 9 version 9.11.2-P1\n BIND 9 version 9.12.0rc2\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n BIND 9 version 9.9.11-S2\n BIND 9 version 9.10.6-S2"
}
],
"source": {
"discovery": "UNKNOWN"
},
"work_around": [
{
"lang": "eng",
"value": "If an operator is experiencing crashes due to this, temporarily disabling DNSSEC validation can be used to avoid the known problematic code path while replacement builds are prepared."
}
]
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}
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