76383 : WebKit FlexBoxIterator Class Child Collapsed Visibility Handling Use-after-free Issue
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
4	782	over 1 year ago	about 1 month ago	6 times	70%

Timeline

Disclosure Date
2011-10-13

Description

WebKit contains a use-after-free error in the FlexBoxIterator class in WebCore/rendering/RenderDeprecatedFlexibleBox.cpp when a child has a collapsed visibility. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: PoC Public
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

It has been reported that this issue has been fixed. Upgrade to version 1.6.0, or higher, to address this vulnerability.

Products

Unknown or Incomplete

References

CVE ID: 2011-3233 (see also: NVD)
Secunia Advisory ID: 46339
Bugtraq ID: 50066
ISS X-Force ID: 70511
Related OSVDB ID: 76381 76382 76384 76385 76386 76387
Mail List Post: http://lists.apple.com/archives/Security-announce/2011//Oct/msg00000.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00004.html
http://seclists.org/bugtraq/2011/Oct/78
Other Advisory URL: http://support.apple.com/kb/HT4981
Vendor Specific News/Changelog Entry: http://support.apple.com/kb/HT5000
https://bugs.webkit.org/show_bug.cgi?id=63776 [ Auth Req'd ]
https://code.google.com/p/chromium/issues/detail?id=83672
Vendor Specific Solution URL: http://trac.webkit.org/changeset/90568
News Article: http://www.zdnet.com/blog/security/apple-slaps-another-security-band-aid-on-itunes/9598

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 7.6
Source: nvd.nist.gov | Generated: 2011-10-12 | Disagree? | There are 1 more: View All

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