Buffer overflow in ISC BIND

Published: 2014-01-14 | Updated: 2020-07-24

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2014-0591
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	ISC BIND Server applications / DNS servers
Vendor	ISC

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU31837

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-0591

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The query_findclosestnsec3 function in query.c in named in ISC BIND 9.6, 9.7, and 9.8 before 9.8.6-P2 and 9.9 before 9.9.4-P2, and 9.6-ESV before 9.6-ESV-R10-P2, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a crafted DNS query to an authoritative nameserver that uses the NSEC3 signing feature.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ISC BIND: 9.9.8-P3

CPE2.3

cpe:2.3:a:isc:isc_bind:9.9.8-P3:*:*:*:*:*:*:*

External links

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.