Test ID:	1.3.6.1.4.1.25623.1.0.113848
Category:	Denial of Service
Title:	ISC BIND DoS Vulnerability (CVE-2022-0396) - 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: ISC recently discovered an issue in BIND that allows TCP connection slots to be consumed for an indefinite time frame via a specifically crafted TCP stream sent from a client. This issue is present in BIND 9.16.11 to 9.16.26 (including S editions), and 9.18.0. This issue can only be triggered on BIND servers which have keep-response-order enabled, which is not the default configuration. The keep-response-order option is an ACL block, any hosts which are specified within it will be able to trigger this issue on affected versions. Vulnerability Impact: Specifically crafted TCP streams can cause connections to BIND to remain in CLOSE_WAIT status for an indefinite period of time, even after the client has terminated the connection. Affected Software/OS: ISC BIND versions 9.16.11 through 9.16.26, 9.17.0 through 9.18.0 and 9.16.11-S1 through 9.16.26-S1. Solution: Update to version 9.16.27, 9.18.1, 9.16.27-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-2022-0396 https://kb.isc.org/v1/docs/cve-2022-0396 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYD7US4HZRFUGAJ66ZTHFBYVP5N3OQBY/ https://security.gentoo.org/glsa/202210-25
Copyright	Copyright (C) 2022 Greenbone Networks GmbH

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