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Test ID:1.3.6.1.4.1.25623.1.0.143937
Category:Denial of Service
Title:ISC BIND Multiple DoS Vulnerabilities - CVE-2020-8616, CVE-2020-8617 (Linux)
Summary:ISC BIND is prone to multiple denial of service vulnerabilities.
Description:Summary:
ISC BIND is prone to multiple denial of service vulnerabilities.

Vulnerability Insight:
ISC BIND is prone to multiple denial of service vulnerabilities:

- BIND does not sufficiently limit the number of fetches performed when processing referrals (CVE-2020-8616)

- A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c
(CVE-2020-8617)

Affected Software/OS:
BIND 9.0.0 - 9.11.18, 9.12.0 - 9.12.4-P2, 9.14.0 - 9.14.11,
9.16.0 - 9.16.2, 9.17.0 -> 9.17.1 and 9.9.3-S1 - 9.11.18-S1. Also affects all releases in the obsolete
9.13 and 9.15 development branches.

Solution:
Update to version 9.11.19, 9.14.12, 9.16.3, 9.11.19-S1 or later.

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-8616
Debian Security Information: DSA-4689 (Google Search)
https://www.debian.org/security/2020/dsa-4689
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/
http://www.nxnsattack.com
https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html
http://www.openwall.com/lists/oss-security/2020/05/19/4
https://usn.ubuntu.com/4365-1/
https://usn.ubuntu.com/4365-2/
Common Vulnerability Exposure (CVE) ID: CVE-2020-8617
http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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