Vulnerability Details

ISC BIND DNS64 and RPZ Denial of Service Vulnerability

Published: 2017-02-27 07:42:12
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P

Detection Type:
Remote Banner Unreliable

Summary:
The host is installed with ISC BIND and is prone to denial of service vulnerability.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
The flaw exists due to using both DNS64 and RPZ to rewrite query responses, query processing can resume in an inconsistent state.

Impact:
Successful exploitation will allow remote attackers to cause an INSIST assertion failure (and subsequent abort) or an attempt to read through a NULL pointer. On most platforms a NULL pointer read leads to a segmentation fault (SEGFAULT), which causes the process to be terminated.

Affected Versions:
ISC BIND versions 9.8.8, 9.9.3-S1 through 9.9.9-S7, 9.9.3 through 9.9.9-P5, 9.9.10b1, 9.10.0 through 9.10.4-P5, 9.10.5b1, 9.11.0 through 9.11.0-P2 and 9.11.1b1

Recommendations:
Upgrade to ISC BIND version 9.9.9-P6 or 9.10.4-P6 or 9.11.0-P3 or 9.9.9-S8 or later.

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-3135

SecurityFocus Bugtraq ID:

https://www.securityfocus.com/bid/96150

References:

https://kb.isc.org/article/AA-01453
https://www.isc.org

Severity
Medium
CVSS Score
4.3
Published
2017-02-27
Modified
2019-02-12
Category
Denial of Service

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