#VU14291 Assertion failure in ISC BIND

Published: 2018-08-09 | Updated: 2018-08-09

Vulnerability identifier: #VU14291

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-2018-5740


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Server applications / DNS servers

Vendor: ISC


The vulnerability allows an attacker to perform denial of service (DoS) attack.

The vulnerability exists due to INSIST assertion failure in name.c when processing recursive queries. A remote attacker can trigger denial of service conditions if the affected server is configured with enabled "deny-answer-aliases" feature.


Update to version 9.9.13-P1, 9.10.8-P1, 9.11.3-S3, 9.11.4-P1 or 9.12.2-P1

Vulnerable software versions

ISC BIND: 9.7.0 - 9.13.2

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.

Is there known malware, which exploits this vulnerability?

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

Latest bulletins with this vulnerability