Vulnerability identifier: #VU32395

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/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-2015-5722

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.

buffer.c in named in ISC BIND 9.x before 9.9.7-P3 and 9.10.x before 9.10.2-P4 allows remote attackers to cause a denial of service (assertion failure and daemon exit) by creating a zone containing a malformed DNSSEC key and issuing a query for a name in that zone.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ISC BIND: 4.9.2 - 9.9.7-P2

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External links
http://lists.apple.com/archives/security-announce/2015/Oct/msg00009.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168686.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165750.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165810.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165996.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167465.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00033.html
http://marc.info/?l=bugtraq&m=144294073801304&w=2
http://rhn.redhat.com/errata/RHSA-2015-1705.html
http://rhn.redhat.com/errata/RHSA-2015-1706.html
http://rhn.redhat.com/errata/RHSA-2015-1707.html
http://rhn.redhat.com/errata/RHSA-2016-0078.html
http://rhn.redhat.com/errata/RHSA-2016-0079.html
http://www.debian.org/security/2015/dsa-3350
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/76605
http://www.securitytracker.com/id/1033452
http://www.ubuntu.com/usn/USN-2728-1
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04891218
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04923105
http://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952480
http://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05095918
http://kb.isc.org/article/AA-01287
http://kb.isc.org/article/AA-01305
http://kb.isc.org/article/AA-01306
http://kb.isc.org/article/AA-01307
http://kb.isc.org/article/AA-01438
http://kc.mcafee.com/corporate/index?page=content&id=SB10134
http://security.gentoo.org/glsa/201510-01
http://security.netapp.com/advisory/ntap-20190730-0001/
http://support.apple.com/HT205376

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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.