72780 : WebKit CSS Visited Link Style History Information Disclosure
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
7	842	almost 2 years ago	4 months ago	4 times	100%

Timeline

Disclosure Date
2011-06-07

Time to Patch
30 days

Description

WebKit contains a flaw in Source/WebCore/css/CSSStyleSelector.cpp that may lead to unauthorized disclosure of potentially sensitive information. The issue is triggered when using CSS to set different styles on visited links with the :visited selector and then using JavaScript to compare the styles on visited and not visited links. This may disclose whether or not a given link has been previously visited to a context-dependent attacker.

Classification

Location: Context Dependent
Attack Type: Information Disclosure
Impact: Loss of Confidentiality
Solution: Upgrade
Exploit: Exploit Private
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

Upgrade to WebKitGTK+ version 1.3.13 and 1.4.0, or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds. The vulnerability is also addressed in revision 83345 part of nightly build r83376 from 9th April 2011.

Upgrade to Google Chrome version 12.0.742.91 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Google, Inc.

Chrome

11.0.696.77

webkit.org	WebKitGTK+	1.3.12
		1.2.0

References

OVAL ID: 14433
CVE ID: 2011-1810 (see also: NVD)
Secunia Advisory ID: 44829
Bugtraq ID: 48129
ISS X-Force ID: 67893
Related OSVDB ID: 72778 72779 72781 72782 72783 72784 72785 72786 72787 72788 72789 72790 72791
Vendor Specific News/Changelog Entry: http://code.google.com/p/chromium/issues/detail?id=75643
http://googlechromereleases.blogspot.com/2011/06/chrome-stable-release.html
https://bugs.webkit.org/show_bug.cgi?id=57971 [ Auth Req'd ]
Vendor Specific Solution URL: http://trac.webkit.org/changeset/83345

Credit

Jesse Mohrland - Microsoft Vulnerability Research

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2011-06-10 | Disagree? | There are 1 more: View All

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