Input validation error in ISC BIND
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2015-4620 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
ISC BIND Server applications / DNS servers |
| Vendor | ISC |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU33826
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-2015-4620
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.
MitigationInstall update from vendor's website.
Vulnerable software versionsISC BIND: 9.7.0 - 9.7.7b1
External linkshttp://lists.fedoraproject.org/pipermail/package-announce/2015-July/162040.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162286.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00050.html
http://lists.opensuse.org/opensuse-updates/2015-07/msg00038.html
http://marc.info/?l=bugtraq&m=143740940810833&w=2
http://rhn.redhat.com/errata/RHSA-2015-1443.html
http://rhn.redhat.com/errata/RHSA-2015-1471.html
http://www.debian.org/security/2015/dsa-3304
http://www.securityfocus.com/bid/75588
http://www.securitytracker.com/id/1032799
http://www.ubuntu.com/usn/USN-2669-1
http://kb.isc.org/article/AA-01267
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://kb.juniper.net/JSA10783
http://kc.mcafee.com/corporate/index?page=content&id=SB10124
http://security.gentoo.org/glsa/201510-01
http://security.netapp.com/advisory/ntap-20190903-0003/
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.
