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TITLE:
Microsoft Windows OpenType Font Driver Three Vulnerabilities

SECUNIA ADVISORY ID:
SA42604

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42604/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42604

RELEASE DATE:
2010-12-21

DISCUSS ADVISORY:
http://secunia.com/advisories/42604/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42604/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42604

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:
Three vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious, local users to gain escalated
privileges and by malicious people to compromise a user's system.

1) An array indexation error within the OpenType Font (OTF) driver
while parsing OpenType fonts can be exploited to corrupt memory.

2) A double-free error due to the OpenType Font (OTF) driver not
properly resetting a pointer when freeing memory can be exploited to
corrupt memory via a specially crafted OpenType font.

3) An unspecified error in the OpenType Font (OTF) driver when
parsing the CMAP table of an OpenType font can be exploited to
corrupt memory.

Successful exploitation allows execution of arbitrary code in kernel
mode.

SOLUTION:
Apply the patches.

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

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1, 2) Marc Schoenefeld, Red Hat Security Response Team
3) Paul-Kenji Cahier Furuya

ORIGINAL ADVISORY:
MS10-091 (KB2296199):
http://www.microsoft.com/technet/security/bulletin/MS10-091.mspx

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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