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Test ID:1.3.6.1.4.1.25623.1.0.141281
Category:Denial of Service
Title:ISC BIND DoS Vulnerability (CVE-2019-6471) - Windows
Summary:ISC BIND is prone to a denial of service vulnerability when discarding; malformed packets.
Description:Summary:
ISC BIND is prone to a denial of service vulnerability when discarding
malformed packets.

Vulnerability Insight:
A race condition which may occur when discarding malformed packets can result
in BIND exiting due to a REQUIRE assertion failure in dispatch.c.

Vulnerability Impact:
An attacker who can cause a resolver to perform queries which will be answered
by a server which responds with deliberately malformed answers can cause named to exit, denying service to clients.

Affected Software/OS:
ISC BIND versions 9.11.0 to 9.11.7, 9.12.0 to 9.12.4-P1, 9.14.0 to 9.14.2, all
releases of the BIND 9.13 development branch, 9.15.0 and BIND Supported Preview Edition versions 9.11.3-S1 to 9.11.7-S1.

Solution:
Update to version 9.11.8, 9.12.4-P2, 9.14.3, 9.15.1, 9.11.8-S1 or later.

CVSS Score:
4.3

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-6471
CopyrightCopyright (C) 2019 Greenbone Networks GmbH

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