bugtraq - ZDI-09-033: Apple WebKit dir Attribute Freeing Dangling Object Pointer Vulnerability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <C653012B.17FB2%zdi-disclosures@tippingpoint.com>
Date: Mon, 8 Jun 2009 17:55:55 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: FD <full-disclosure@...ts.grok.org.uk>,
	bugtraq <bugtraq@...urityfocus.com>
Cc: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
Subject: ZDI-09-033: Apple WebKit dir Attribute Freeing Dangling Object
 Pointer Vulnerability

ZDI-09-033: Apple WebKit dir Attribute Freeing Dangling Object Pointer
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-033
June 8, 2009

-- CVE ID:
CVE-2009-1701

-- Affected Vendors:
Apple

-- Affected Products:
Apple Safari

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable software utilizing the Apple WebKit library. User interaction
is required to exploit this vulnerability in that the target must visit
a malicious page.

The specific flaw exists when the document.body element contains a
specific XML container containing various elements supporting the 'dir'
attribute. During the destruction of this element, if the rendering
object responsible for the element is being removed, the application
will then make a call to a method for an object that doesn't exist which
can lead to code execution under the context of the current user.

-- Vendor Response:
Apple has issued an update to correct this vulnerability. More
details can be found at:

http://support.apple.com/kb/HT3613

-- Disclosure Timeline:
2009-02-09 - Vulnerability reported to vendor
2009-06-08 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * wushi & ling of team509

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/