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Test ID:1.3.6.1.4.1.25623.1.0.146638
Category:Denial of Service
Title:ISC BIND DoS Vulnerability (CVE-2020-8618) - Linux
Summary:ISC BIND is prone to a denial of service (DoS) vulnerability.
Description:Summary:
ISC BIND is prone to a denial of service (DoS) vulnerability.

Vulnerability Insight:
An assertion check in BIND (that is meant to prevent going
beyond the end of a buffer when processing incoming data) can be incorrectly triggered by a large
response during zone transfer.

Vulnerability Impact:
An attacker who is permitted to send zone data to a server via
zone transfer can exploit this to intentionally trigger the assertion failure with a specially
constructed zone, denying service to clients.

Affected Software/OS:
BIND 9.16.0 through 9.16.3.

Solution:
Update to version 9.16.4 or later.

CVSS Score:
4.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-8618
https://kb.isc.org/docs/cve-2020-8618
SuSE Security Announcement: openSUSE-SU-2020:1699 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
SuSE Security Announcement: openSUSE-SU-2020:1701 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
https://usn.ubuntu.com/4399-1/
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