GSD-2016-9778
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. Please note: This vulnerability affects the "nxdomain-redirect" feature, which is one of two methods of handling NXDOMAIN redirection, and is only available in certain versions of BIND. Redirection using zones of type "redirect" is not affected by this vulnerability. Affects BIND 9.9.8-S1 -> 9.9.8-S3, 9.9.9-S1 -> 9.9.9-S6, 9.11.0-9.11.0-P1.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2016-9778",
"description": "An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. Please note: This vulnerability affects the \"nxdomain-redirect\" feature, which is one of two methods of handling NXDOMAIN redirection, and is only available in certain versions of BIND. Redirection using zones of type \"redirect\" is not affected by this vulnerability. Affects BIND 9.9.8-S1 -\u003e 9.9.8-S3, 9.9.9-S1 -\u003e 9.9.9-S6, 9.11.0-9.11.0-P1.",
"id": "GSD-2016-9778",
"references": [
"https://www.suse.com/security/cve/CVE-2016-9778.html",
"https://advisories.mageia.org/CVE-2016-9778.html",
"https://security.archlinux.org/CVE-2016-9778"
]
},
"gsd": {
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"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"details": "An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. Please note: This vulnerability affects the \"nxdomain-redirect\" feature, which is one of two methods of handling NXDOMAIN redirection, and is only available in certain versions of BIND. Redirection using zones of type \"redirect\" is not affected by this vulnerability. Affects BIND 9.9.8-S1 -\u003e 9.9.8-S3, 9.9.9-S1 -\u003e 9.9.9-S6, 9.11.0-9.11.0-P1.",
"id": "GSD-2016-9778",
"modified": "2023-12-13T01:21:21.468475Z",
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"TITLE": "An error handling certain queries using the nxdomain-redirect feature could cause a REQUIRE assertion failure in db.c"
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"value": "Only servers which are performing NXDOMAIN redirection using the \"nxdomain-redirect\" function are potentially vulnerable and then only a subset of those servers. In order to be affected a server must be using nxdomain-redirect AND must be redirecting NXDOMAIN responses for a zone for which the server also provides authoritative service -- therefore a purely recursive server is not at risk, either. Successful exploitation of the vulnerability will cause named to stop execution after encountering a REQUIRE assertion failure in db.c, resulting in denial of service to clients."
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"value": "Upgrade to the patched release most closely related to your current version of BIND. These can be downloaded from http://www.isc.org/downloads.\n\n BIND 9 version 9.11.0-P2\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n BIND 9.9.9-S7 "
}
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"lang": "eng",
"value": "Either provide an ordinary (that is: not redirected) NXDOMAIN for non-existent resource records in zones for which authoritative data is served on the same server or use redirect zones instead of the nxdomain-redirect feature."
}
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"lastModifiedDate": "2019-10-09T23:20Z",
"publishedDate": "2019-01-16T20:29Z"
}
}
}
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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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