Improper input validation in ISC BIND - CVE-2016-9778
Published: January 12, 2017 / Updated: January 12, 2017
Vulnerability identifier: #VU4351
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-9778
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause denial of service conditions.
The vulnerability exists due to assertion failure when processing input data. A remote attacker can send a specially crafted query to the target system that uses the nxdomain-redirect feature to cover a zone for which it provides authoritative service, trigger assertion failure and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against vulnerable application.
Affected software
ISC BIND
Arch Linux
Gentoo Linux
Slackware Linux
Arch Linux
Gentoo Linux
Slackware Linux
How to mitigate CVE-2016-9778
The vendor has issued the following versions to address this vulnerability: 9.11.0-P2 or 9.9.9-S7.