ID

VAR-201105-0070

CVE

CVE-2011-1449

TITLE

Google Chrome of WebSockets Service disruption in implementations (DoS) Vulnerabilities

DESCRIPTION

Use-after-free vulnerability in the WebSockets implementation in Google Chrome before 11.0.696.57 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. Google Chrome is prone to multiple vulnerabilities. Versions prior to Chrome 11.0.696.57 are vulnerable. WebKit is prone to a remote code-execution vulnerability. Attackers can exploit this issue by enticing an unsuspecting user into visiting a malicious webpage. Successful attacks will allow attackers to execute arbitrary code within the context of the application. Failed exploit attempts will result in a denial-of-service condition. NOTE: This issue was previously discussed in 48808 (Apple Safari Prior to 5.1 and 5.0.6 Multiple Security Vulnerabilities) but has been given its own record to better document it. Google Chrome is a web browser developed by Google (Google). ---------------------------------------------------------------------- The Secunia Vulnerability Intelligence Manager (VIM) enables you to handle vulnerability threats in a simple, cost effective way. Read more and request a free trial: http://secunia.com/products/corporate/vim/ ---------------------------------------------------------------------- TITLE: Apple Safari Multiple Vulnerabilities SECUNIA ADVISORY ID: SA45325 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/45325/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=45325 RELEASE DATE: 2011-07-22 DISCUSS ADVISORY: http://secunia.com/advisories/45325/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/45325/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=45325 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: A weakness and multiple vulnerabilities have been reported in Apple Safari, which can be exploited by malicious people to disclose sensitive information, manipulate certain data, conduct cross-site scripting and spoofing attacks, bypass certain security restrictions, and compromise a user's system. 1) An error within CFNetwork when handling the "text/plain" content type can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. 3) An error exists within CFNetwork when handling SSL certificates, which does not properly verify disabled root certificates. This can lead to certificates signed by the disabled root certificates being validated. 4) An integer overflow error exists within the ColorSync component. For more information see vulnerability #5 in: SA45054 5) An off-by-one error exists within the CoreFoundation framework. For more information see vulnerability #6 in: SA45054 6) An integer overflow error exists in CoreGraphics. For more information see vulnerability #7 in: SA45054 7) An error exists within ICU (International Components for Unicode). For more information see vulnerability #11 in: SA45054 8) An error exists in ImageIO within the handling of TIFF files when handling certain uppercase strings. For more information see vulnerability #9 in: SA45054 9) An error in ImageIO within the handling of CCITT Group 4 encoded TIFF image files can be exploited to cause a heap-based buffer overflow. 10) A use-after-free error within WebKit when handling TIFF images can result in an invalid pointer being dereferenced when a user views a specially crafted web page. 11) An error within libxslt can be exploited to disclose certain addresses from the heap. For more information see vulnerability #2 in: SA43832 12) An off-by-one error within libxml when handling certain XML data can be exploited to cause a heap-based buffer overflow. 13) An error in the "AutoFill web forms" feature can be exploited to disclose certain information from the user's Address Book by tricking a user into visiting a specially crafted web page. 14) A cross-origin error when handling certain fonts in Java Applets can lead to certain text being displayed on other sites. 15) Multiple unspecified errors in the WebKit component can be exploited to corrupt memory. 16) An error within WebKit when handling libxslt configurations can be exploited to create arbitrary files. 17) A cross-origin error when handling Web Workers can lead to certain information being disclosed. 18) A cross-origin error when handling certain URLs containing a username can be exploited to execute arbitrary HTML and script code in a user's browser session in the context of an affected site. 19) A cross-origin error when handling DOM nodes can be exploited to execute arbitrary HTML and script code in a user's browser session in the context of an affected site. 20) An error within the handling of DOM history objects can be exploited to display arbitrary content while showing the URL of a trusted web site in the address bar. 21) An error within the handling of RSS feeds may lead to arbitrary files from a user's system being sent to a remote server. 22) A weakness in WebKit can lead to remote DNS prefetching For more information see vulnerability #6 in: SA42312 23) A use-after-free error within WebKit when processing MathML markup tags can result in an invalid pointer being dereferenced when a user views a specially crafted web page. 24) An error within WebKit when parsing a frameset element can be exploited to cause a heap-based buffer overflow. 25) A use-after-free error within WebKit when handling XHTML tags can result in an invalid tag pointer being dereferenced when a user views a specially crafted web page. 26) A use-after-free error within WebKit when handling SVG tags can result in an invalid pointer being dereferenced when a user views a specially crafted web page. SOLUTION: Update to version 5.1 or 5.0.6. PROVIDED AND/OR DISCOVERED BY: 10) Juan Pablo Lopez Yacubian via iDefense 4) binaryproof via ZDI 8) Dominic Chell, NGS Secure 23, 25, 26) wushi, team509 via iDefense 24) Jose A. Vazquez via iDefense The vendor credits: 1) Hidetake Jo via Microsoft Vulnerability Research (MSVR) and Neal Poole, Matasano Security 2) Takehiro Takahashi, IBM X-Force Research 3) An anonymous reporter 5) Harry Sintonen 6) Cristian Draghici, Modulo Consulting and Felix Grobert, Google Security Team 7) David Bienvenu, Mozilla 9) Cyril CATTIAUX, Tessi Technologies 11) Chris Evans, Google Chrome Security Team 12) Billy Rios, Google Security Team 13) Florian Rienhardt of BSI, Alex Lambert, and Jeremiah Grossman 14) Joshua Smith, Kaon Interactive 16) Nicolas Gregoire, Agarri 17) Daniel Divricean, divricean.ro 18) Jobert Abma, Online24 19) Sergey Glazunov 20) Jordi Chancel 21) Jason Hullinger 22) Mike Cardwell, Cardwell IT The vendor provides a bundled list of credits for vulnerabilities in #15: * David Weston, Microsoft and Microsoft Vulnerability Research (MSVR) * Yong Li, Research In Motion * SkyLined, Google Chrome Security Team * Abhishek Arya (Inferno), Google Chrome Security Team * Nikita Tarakanov and Alex Bazhanyuk, CISS Research Team * J23 via ZDI * Rob King via ZDI * wushi, team509 via ZDI * wushi of team509 * Adam Barth, Google Chrome Security Team * Richard Keen * An anonymous researcher via ZDI * Rik Cabanier, Adobe Systems * Martin Barbella * Sergey Glazunov * miaubiz * Andreas Kling, Nokia * Marek Majkowski via iDefense * John Knottenbelt, Google ORIGINAL ADVISORY: Apple: http://support.apple.com/kb/HT4808 iDefense: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=930 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=931 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=932 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=933 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=934 ZDI: http://www.zerodayinitiative.com/advisories/ZDI-11-228/ NGS Secure: http://archives.neohapsis.com/archives/bugtraq/2011-07/0034.html OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. iDefense Security Advisory 07.20.11 http://labs.idefense.com/intelligence/vulnerabilities/ Jul 20, 2011 I. BACKGROUND MathML is an XML-based markup language used to describe mathematical operations. It can be embedded inside of HTML and is supported by the WebKit engine. II. DESCRIPTION Remote exploitation of a use-after-free vulnerability in WebKit, as included with multiple vendors' browsers, could allow an attacker to execute arbitrary code with the privileges of the current user. <BR><BR> The vulnerability occurs during the processing of MathML markup tags. Specifically, it is possible to trigger a use-after-free vulnerability when Safari fails to properly release an object. The object's memory is freed; however, a reference to the object remains. When the reference is later used to access the object, this now invalid memory is treated as a valid object and the object's vtable is used to make an indirect function call. This may result in the execution of arbitrary code. III. ANALYSIS Exploitation of this vulnerability results in the execution of arbitrary code with the privileges of the user viewing the Web page. An attacker typically accomplishes this via social engineering or injecting content into compromised, trusted sites. After the user visits the malicious Web page, no further user interaction is needed. IV. V. WORKAROUND Disabling JavaScript is an effective workaround for this vulnerability. VI. VENDOR RESPONSE Apple Inc. has released patches which addresses this issue. For more information, consult their advisory at the following URL: http://support.apple.com/kb/HT4808 VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2011-1449 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 12/15/2010 Initial Vendor Notification 12/15/2010 Initial Vendor Reply 07/20/2011 Coordinated Public Disclosure IX. CREDIT This vulnerability was reported to iDefense by wushi of team509. Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright © 2011 Verisign Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@idefense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information

AFFECTED PRODUCTS