- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-07:02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Adobe Flash Player: Multiple vulnerabilities Date: January 20, 2008 Updated: January 20, 2008 Bugs: #193519 ID: 200801-07:02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been identified, the worst of which allow arbitrary code execution on a user's system via a malicious Flash file. Background ========== The Adobe Flash Player is a renderer for the popular SWF file format, which is commonly used to provide interactive websites, digital experiences and mobile content. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-www/netscape-flash < 9.0.115.0 >= 9.0.115.0 Description =========== * Flash contains a copy of PCRE which is vulnerable to a heap-based buffer overflow (GLSA 200711-30, CVE-2007-4768). * Aaron Portnoy reported an unspecified vulnerability related to input validation (CVE-2007-6242). * Jesse Michael and Thomas Biege reported that Flash does not correctly set memory permissions (CVE-2007-6246). * Dan Boneh, Adam Barth, Andrew Bortz, Collin Jackson, and Weidong Shao reported that Flash does not pin DNS hostnames to a single IP addresses, allowing for DNS rebinding attacks (CVE-2007-5275). * David Neu reported an error withing the implementation of the Socket and XMLSocket ActionScript 3 classes (CVE-2007-4324). * Toshiharu Sugiyama reported that Flash does not sufficiently restrict the interpretation and usage of cross-domain policy files, allowing for easier cross-site scripting attacks (CVE-2007-6243). * Rich Cannings reported a cross-site scripting vulnerability in the way the "asfunction:" protocol was handled (CVE-2007-6244). * Toshiharu Sugiyama discovered that Flash allows remote attackers to modify HTTP headers for client requests and conduct HTTP Request Splitting attacks (CVE-2007-6245). Impact ====== A remote attacker could entice a user to open a specially crafted file (usually in a web browser), possibly leading to the execution of arbitrary code with the privileges of the user running the Adobe Flash Player. The attacker could also cause a user's machine to establish TCP sessions with arbitrary hosts, bypass the Security Sandbox Model, obtain sensitive information, port scan arbitrary hosts, or conduct cross-site-scripting attacks. Workaround ========== There is no known workaround at this time. Resolution ========== All Adobe Flash Player users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-www/netscape-flash-9.0.115.0" Please be advised that unaffected packages of the Adobe Flash Player have known problems when used from within the Konqueror and Opera browsers. References ========== [ 1 ] CVE-2007-4324 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4324 [ 2 ] CVE-2007-4768 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4768 [ 3 ] CVE-2007-5275 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5275 [ 4 ] CVE-2007-6242 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6242 [ 5 ] CVE-2007-6243 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6243 [ 6 ] CVE-2007-6244 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6244 [ 7 ] CVE-2007-6245 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6245 [ 8 ] CVE-2007-6246 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6246 [ 9 ] GLSA 200711-30 http://www.gentoo.org/security/en/glsa/glsa-200711-30.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-07.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5