Test ID:	1.3.6.1.4.1.25623.1.0.151071
Category:	Web Servers
Title:	Squid DoS Vulnerability (GHSA-cg5h-v6vc-w33f, SQUID-2021:8)
Summary:	Squid is prone to a denial of service (DoS) vulnerability in; the Gopher gateway.
Description:	Summary: Squid is prone to a denial of service (DoS) vulnerability in the Gopher gateway. Vulnerability Insight: Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. This flaw was part of the 'Squid Caching Proxy Security Audit: 55 vulnerabilities and 35 0days' publication in October 2023 and filed as 'Null Pointer Dereference in Gopher Response Handling'. Affected Software/OS: Squid version 2.x and later prior to version 6.0.1. Solution: Update to version 6.0.1 or later. As a workaround reject all gopher URL requests. Please see the referenced vendor advisory for more information. Note: Removing the gopher port 70 from the Safe_ports ACL is not sufficient to avoid this vulnerability. CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2023-46728 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/ https://github.com/squid-cache/squid/commit/6ea12e8fb590ac6959e9356a81aa3370576568c3 https://github.com/squid-cache/squid/security/advisories/GHSA-cg5h-v6vc-w33f
Copyright	Copyright (C) 2023 Greenbone AG

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