Yahoo! Messenger Two ActiveX Controls Buffer Overflows - Secunia Advisories - Vulnerability Intelligence

Yahoo! Messenger Two ActiveX Controls Buffer Overflows
Secunia Advisory:	SA25547	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2007-06-07
Last Update:	2007-06-13
Popularity:	23,916 views

Critical:	Extremely critical
Impact:	System access
Where:	From remote
Solution Status:	Vendor Patch

Software:	Yahoo! Messenger 8.x

Binary Analysis:	BA147 :: Available for 1 Credit BA149 :: Available for 1 Credit

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2007-3147 CVE-2007-3148

Description: Danny has discovered two vulnerabilities in Yahoo! Messenger, which can be exploited by malicious people to compromise a user's system. 1) A boundary error within the Yahoo! Webcam Upload (ywcupl.dll) ActiveX control can be exploited to cause a stack-based buffer overflow by assigning an overly long string to the "Server" property and then calling the "Send()" method. 2) A boundary error within the Yahoo! Webcam Viewer (ywcvwr.dll) ActiveX control can be exploited to cause a stack-based buffer overflow by assigning an overly long string to the "Server" property and then calling the "Receive()" method. Successful exploitation of the vulnerabilities allows execution of arbitrary code. The vulnerabilities are confirmed in version 8.1.0.249. Other versions may also be affected. Solution: Update to the latest version. http://messenger.yahoo.com Set the kill-bit for the affected ActiveX controls. Provided and/or discovered by: Danny Also independently discovered by: Greg Linares, eEye Digital Security. Changelog: 2007-06-08: Updated "Solution" section. Added vendor link. 2007-06-11: Added links to US-CERT and eEye Digital Security. 2007-06-13: Added CVE reference. Original Advisory: Yahoo: http://messenger.yahoo.com/security_update.php?id=060707 Full-Disclosure: http://lists.grok.org.uk/pipermail/full-disclosure/2007-June/063817.html http://lists.grok.org.uk/pipermail/full-disclosure/2007-June/063819.html eEye Digital Security: http://research.eeye.com/html/advisories/published/AD20070608.html Other References: US-CERT VU#932217: http://www.kb.cert.org/vuls/id/932217 US-CERT VU#949817: http://www.kb.cert.org/vuls/id/949817 Extended Solution: The "Extended Solution" section is available for Secunia customers only. Request a trial and get access to the Secunia Customer Area and Extended Secunia advisories.

Track this Secunia Advisory
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released. Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.

About this Secunia Advisory
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

Latest Advisories

Today

New advisories:	19
New vulnerabilities:	68
Updated advisories:	62

Moderately // 42 views

Debian update for PHP

Moderately // 75 views

Atarone CMS Multiple Vulnerabilities

Less // 90 views

MetaGauge Directory Traversal Vulnerability

Less // 107 views

H-Sphere webshell4 Cross-Site Scripting and Request Forgery

Moderately // 115 views

CMME Information Disclosure Security Issues

Moderately // 124 views

Debian update for squid

Less // 129 views

SUSE update for mercurial

Moderately // 153 views

SUSE update for openssh

Moderately // 108 views

SUSE update for dovecot and graphicsmagic

Less // 127 views

Fedora update for mediawiki

Solutions | More...

Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com. Ideas, suggestions, and other feedback are most welcome.