From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Dec 20 2010 - 19:58:21 CST

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TITLE:
Internet Explorer CSS Import Rule Processing Use-After-Free
Vulnerability

SECUNIA ADVISORY ID:
SA42510

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42510/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42510

RELEASE DATE:
2010-12-21

DISCUSS ADVISORY:
http://secunia.com/advisories/42510/#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/42510/

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=42510

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 vulnerability has been discovered in Internet Explorer, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a use-after-free error when
processing Cascading Style Sheets (CSS) and can be exploited to
dereference freed memory via e.g. a specially crafted CSS file
containing multiple import rules.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in Internet Explorer 7 and 8 on a
fully patched Windows XP SP3 system.

SOLUTION:
Do not browse untrusted websites.

PROVIDED AND/OR DISCOVERED BY:
sec yun

ORIGINAL ADVISORY:
http://www.wooyun.org/bugs/wooyun-2010-0885

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
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vulnerabilities.

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Please Note:
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clicking the link.
Secunia NEVER sends attached files with advisories.
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