{"containers": {"cna": {"affected": [{"product": "BIND 9", "vendor": "ISC", "versions": [{"status": "affected", "version": "9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1"}]}], "credits": [{"lang": "en", "value": "ISC would like to thank Oli Schacher of Switch for bringing this defect to our attention."}], "datePublic": "2017-06-14T00:00:00", "descriptions": [{"lang": "en", "value": "If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. 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You can work around this vulnerability if you are able to express your desired policy while avoiding NSDNAME or NSIP rules, otherwise it is advised that you upgrade to a version which corrects the defect."}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-officer@isc.org", "DATE_PUBLIC": "2017-06-14T00:00:00.000Z", "ID": "CVE-2017-3140", "STATE": "PUBLIC", "TITLE": "An error processing RPZ rules can cause named to loop endlessly after handling a query"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BIND 9", "version": {"version_data": [{"version_value": "9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1"}]}}]}, "vendor_name": "ISC"}]}}, "credit": [{"lang": "eng", "value": "ISC would like to thank Oli Schacher of Switch for bringing this defect to our attention."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. 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While in this state, named repeatedly queries the same sets of authoritative nameservers and this behavior will usually persist indefinitely beyond the normal client query processing timeout. By triggering this condition multiple times, an attacker could cause a deliberate and substantial degradation in service.\n\nOperators of servers that meet the above conditions 1. and 2. may also accidentally encounter this defect during normal operation. It is for this reason that the decision was made to issue this advisory despite its low CVSS score."}]}]}, "references": {"reference_data": [{"name": "1038692", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1038692"}, {"name": "GLSA-201708-01", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201708-01"}, {"name": "99088", "refsource": "BID", "url": "http://www.securityfocus.com/bid/99088"}, {"name": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_us", "refsource": "CONFIRM", "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_us"}, {"name": "https://security.netapp.com/advisory/ntap-20180926-0001/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20180926-0001/"}, {"name": "https://kb.isc.org/docs/aa-01495", "refsource": "CONFIRM", "url": "https://kb.isc.org/docs/aa-01495"}]}, "solution": [{"lang": "en", "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 9.9.10-P1\n BIND 9 version 9.10.5-P1\n BIND 9 version 9.11.1-P1\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n BIND 9 version 9.9.10-S2\n BIND 9 version 9.10.5-S2"}], "source": {"discovery": "UNKNOWN"}, "work_around": [{"lang": "en", "value": "Only the NSDNAME and NSIP RPZ rule types can cause this condition to occur. 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{"acknowledgement": "Red Hat would like to thank Internet Systems Consortium for reporting this issue. Upstream acknowledges Oli Schacher (Switch) as the original reporter.", "bugzilla": {"description": "bind: Error processing RPZ rules leads to endless loop while handling query", "id": "1461302", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1461302"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-835", "details": ["If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. Affects BIND 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1.", "A denial of service flaw was found in the way BIND handled processing of NSDNAME and NSIP rules. A remote attacker could use this flaw to make named enter an infinite loop by sending a specially crafted query, thus resulting in denial-of-service."], "name": "CVE-2017-3140", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "bind97", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "bind", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-06-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-3140\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-3140"], "statement": "This issue did not affect the versions of BIND as shipped with Red Hat Enterprise Linux 5, 6 and 7.", "threat_severity": "Moderate", "upstream_fix": "bind 9.9.10-P1, bind 9.10.5-P1, bind 9.11.1-P1"}