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    CVE-2012-5166

    ISC BIND 9.x before 9.7.6-P4, 9.8.x before 9.8.3-P4, 9.9.x before 9.9.1-P4, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P4 allows remote attackers to cause a denial of service (named daemon hang) via unspecified combinations of resource records.

    Published:Oct 9, 2012
    Last Modified:Apr 11, 2025
    EPS:Oct 10, 2012
    EPSS Score:0.45084
    CVSS Score:7.8

    Affected Products

    Vendor
    Isc
    Product
    Bind
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Els

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-12617 (CVSS 7.5) — The issue is unexpected program termination based on ordering and/or specific content in responses to queries …
    CVE-2026-11605 (CVSS 7.5) — The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all …
    CVE-2026-10723 (CVSS 6.8) — BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authentica…
    CVE-2026-10822 (CVSS 6.5) — If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and m…
    CVE-2026-13204 (CVSS 7.5) — If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RR…
    CVE-2026-11331 (CVSS 7.5) — An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names…
    CVE-2026-11622 (CVSS 7.5) — A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer f…
    CVE-2026-11721 (CVSS 7.5) — It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels …
    CVE-2026-13321 (CVSS 8.6) — The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the si…
    CVE-2026-5950 (CVSS 5.3) — An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling,…

    References

    http://aix.software.ibm.com/aix/efixes/security/bind9_advisory5.asc
    http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090346.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090491.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090586.html
    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00013.html
    http://osvdb.org/86118
    http://rhn.redhat.com/errata/RHSA-2012-1363.html
    http://rhn.redhat.com/errata/RHSA-2012-1364.html
    http://rhn.redhat.com/errata/RHSA-2012-1365.html
    http://secunia.com/advisories/50903
    http://secunia.com/advisories/50909
    http://secunia.com/advisories/50956
    http://secunia.com/advisories/51054
    http://secunia.com/advisories/51078
    http://secunia.com/advisories/51096
    http://secunia.com/advisories/51106
    http://secunia.com/advisories/51178
    http://support.apple.com/kb/HT5880
    http://www.debian.org/security/2012/dsa-2560
    http://www.ibm.com/support/docview.wss?uid=isg1IV30185
    http://www.ibm.com/support/docview.wss?uid=isg1IV30247
    http://www.ibm.com/support/docview.wss?uid=isg1IV30364
    http://www.ibm.com/support/docview.wss?uid=isg1IV30365
    http://www.ibm.com/support/docview.wss?uid=isg1IV30366
    http://www.ibm.com/support/docview.wss?uid=isg1IV30367
    http://www.ibm.com/support/docview.wss?uid=isg1IV30368
    http://www.isc.org/software/bind/advisories/cve-2012-5166
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:162
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/55852
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.536004
    http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
    https://blogs.oracle.com/sunsecurity/entry/cve_2012_5166_denial_of
    https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
    https://kb.isc.org/article/AA-00801
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19706
    http://aix.software.ibm.com/aix/efixes/security/bind9_advisory5.asc
    http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090346.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090491.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090586.html
    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00013.html
    http://osvdb.org/86118
    http://rhn.redhat.com/errata/RHSA-2012-1363.html
    http://rhn.redhat.com/errata/RHSA-2012-1364.html
    http://rhn.redhat.com/errata/RHSA-2012-1365.html
    http://secunia.com/advisories/50903
    http://secunia.com/advisories/50909
    http://secunia.com/advisories/50956
    http://secunia.com/advisories/51054
    http://secunia.com/advisories/51078
    http://secunia.com/advisories/51096
    http://secunia.com/advisories/51106
    http://secunia.com/advisories/51178
    http://support.apple.com/kb/HT5880
    http://www.debian.org/security/2012/dsa-2560
    http://www.ibm.com/support/docview.wss?uid=isg1IV30185
    http://www.ibm.com/support/docview.wss?uid=isg1IV30247
    http://www.ibm.com/support/docview.wss?uid=isg1IV30364
    http://www.ibm.com/support/docview.wss?uid=isg1IV30365
    http://www.ibm.com/support/docview.wss?uid=isg1IV30366
    http://www.ibm.com/support/docview.wss?uid=isg1IV30367
    http://www.ibm.com/support/docview.wss?uid=isg1IV30368
    http://www.isc.org/software/bind/advisories/cve-2012-5166
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:162
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/55852
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.536004
    http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
    https://blogs.oracle.com/sunsecurity/entry/cve_2012_5166_denial_of
    https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
    https://kb.isc.org/article/AA-00801
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19706

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High