Vulnerability identifier: #VU33930

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-5166

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ISC BIND
Server applications / DNS servers

Vendor: ISC

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ISC BIND: 4.9.2 - 9.7.6-P3

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External links
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
http://blogs.oracle.com/sunsecurity/entry/cve_2012_5166_denial_of
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
http://kb.isc.org/article/AA-00801
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19706

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.