Test ID:	1.3.6.1.4.1.25623.1.0.120702
Category:	Amazon Linux Local Security Checks
Title:	Amazon Linux: Security Advisory (ALAS-2016-713)
Summary:	The remote host is missing an update for the 'squid' package(s) announced via the ALAS-2016-713 advisory.
Description:	Summary: The remote host is missing an update for the 'squid' package(s) announced via the ALAS-2016-713 advisory. Vulnerability Insight: A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. (CVE-2016-4051) Buffer overflow and input validation flaws were found in the way Squid processed ESI responses. If Squid was used as a reverse proxy, or for TLS/HTTPS interception, a remote attacker able to control ESI components on an HTTP server could use these flaws to crash Squid, disclose parts of the stack memory, or possibly execute arbitrary code as the user running Squid. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054) An input validation flaw was found in Squid's mime_get_header_field() function, which is used to search for headers within HTTP requests. An attacker could send an HTTP request from the client side with specially crafted header Host header that bypasses same-origin security protections, causing Squid operating as interception or reverse-proxy to contact the wrong origin server. It could also be used for cache poisoning for client not following RFC 7230. (CVE-2016-4554) An incorrect reference counting flaw was found in the way Squid processes ESI responses. If Squid is configured as reverse-proxy, for TLS/HTTPS interception, an attacker controlling a server accessed by Squid, could crash the squid worker, causing a Denial of Service attack. (CVE-2016-4556) Affected Software/OS: 'squid' package(s) on Amazon Linux. Solution: Please install the updated package(s). CVSS Score: 6.8 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-4051 BugTraq ID: 86788 http://www.securityfocus.com/bid/86788 BugTraq ID: 91787 http://www.securityfocus.com/bid/91787 Debian Security Information: DSA-3625 (Google Search) http://www.debian.org/security/2016/dsa-3625 https://security.gentoo.org/glsa/201607-01 http://www.openwall.com/lists/oss-security/2016/04/20/9 http://www.openwall.com/lists/oss-security/2016/04/20/6 RedHat Security Advisories: RHSA-2016:1138 https://access.redhat.com/errata/RHSA-2016:1138 RedHat Security Advisories: RHSA-2016:1139 https://access.redhat.com/errata/RHSA-2016:1139 RedHat Security Advisories: RHSA-2016:1140 https://access.redhat.com/errata/RHSA-2016:1140 http://www.securitytracker.com/id/1035646 SuSE Security Announcement: SUSE-SU-2016:1996 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html SuSE Security Announcement: SUSE-SU-2016:2089 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html SuSE Security Announcement: openSUSE-SU-2016:2081 (Google Search) http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html http://www.ubuntu.com/usn/USN-2995-1 Common Vulnerability Exposure (CVE) ID: CVE-2016-4052 http://www.securitytracker.com/id/1035647 Common Vulnerability Exposure (CVE) ID: CVE-2016-4053 Common Vulnerability Exposure (CVE) ID: CVE-2016-4054 Common Vulnerability Exposure (CVE) ID: CVE-2016-4554 http://www.securitytracker.com/id/1035769 Common Vulnerability Exposure (CVE) ID: CVE-2016-4556 http://www.openwall.com/lists/oss-security/2016/05/06/3 http://www.openwall.com/lists/oss-security/2016/05/06/5 http://www.securitytracker.com/id/1035770
Copyright	Copyright (C) 2016 Greenbone AG

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