GSD-2018-5745
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
"managed-keys" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor's keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-5745",
"description": "\"managed-keys\" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor\u0027s keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -\u003e 9.10.8-P1, 9.11.0 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.9.3-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.",
"id": "GSD-2018-5745",
"references": [
"https://www.suse.com/security/cve/CVE-2018-5745.html",
"https://www.debian.org/security/2019/dsa-4440",
"https://access.redhat.com/errata/RHSA-2020:1061",
"https://access.redhat.com/errata/RHSA-2019:3552",
"https://ubuntu.com/security/CVE-2018-5745",
"https://security.archlinux.org/CVE-2018-5745",
"https://linux.oracle.com/cve/CVE-2018-5745.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-5745"
],
"details": "\"managed-keys\" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor\u0027s keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -\u003e 9.10.8-P1, 9.11.0 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.9.3-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.",
"id": "GSD-2018-5745",
"modified": "2023-12-13T01:22:40.296811Z",
"schema_version": "1.4.0"
}
},
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"DATE_PUBLIC": "2019-02-21T00:00:00.000Z",
"ID": "CVE-2018-5745",
"STATE": "PUBLIC",
"TITLE": "An assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys"
},
"affects": {
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"value": "\"managed-keys\" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor\u0027s keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -\u003e 9.10.8-P1, 9.11.0 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.9.3-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745."
}
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"impact": {
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
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"value": "This particular vulnerability would be very difficult for an arbitrary attacker to use because it requires an operator to have BIND configured to use a trust anchor managed by the attacker. However, if successfully exercised, the defect will cause named to deliberately exit after encountering an assertion failure.\n\nIt is more likely, perhaps, that this bug could be encountered accidentally, as not all versions of BIND support the same set of cryptographic algorithms. Specifically, recent branches of BIND have begun deliberately removing support for cryptographic algorithms that are now deprecated (for example because they are no longer considered sufficiently secure.) This vulnerability could be encountered if a resolver running a version of BIND which has removed support for deprecated algorithms is configured to use a trust anchor which elects to change algorithm types to one of those deprecated algorithms.\n\n Support for GOST was removed from BIND in 9.13.1.\n Support for DSA was removed from BIND in 9.13.4\n Support for RSAMD5 will be removed from future BIND releases in the 9.13 branch and higher.\n"
}
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}
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"name": "https://kb.isc.org/docs/cve-2018-5745",
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"url": "https://kb.isc.org/docs/cve-2018-5745"
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"name": "RHSA-2019:3552",
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"lang": "eng",
"value": "Upgrade to a version of BIND containing a fix preventing the assertion failure.\n\n\u003e= BIND 9.11.5-P4\n\u003e= BIND 9.12.3-P4\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n\u003e= BIND 9.11.5-S5\n"
}
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}
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"lastModifiedDate": "2019-11-06T01:15Z",
"publishedDate": "2019-10-09T16:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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