Input validation error in ISC BIND

1) Input validation error

EUVDB-ID: #VU32396

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-2015-5986

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

openpgpkey_61.c in named in ISC BIND 9.9.7 before 9.9.7-P3 and 9.10.x before 9.10.2-P4 allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via a crafted DNS response.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ISC BIND: 9.9.7 - 9.9.7-P2

External links

http://lists.apple.com/archives/security-announce/2015/Oct/msg00009.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165810.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167465.html
http://www.securityfocus.com/bid/76618
http://www.securitytracker.com/id/1033453
http://kb.isc.org/article/AA-01291
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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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