ZDI-10-133: Mozilla Firefox CSS font-face Remote Code Execution Vulnerability

2010-07-24T00:00:00
ID SECURITYVULNS:DOC:24326
Type securityvulns
Reporter Securityvulns
Modified 2010-07-24T00:00:00

Description

ZDI-10-133: Mozilla Firefox CSS font-face Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-133 July 20, 2010

-- CVE ID: CVE-2010-2752

-- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors: Mozilla Firefox

-- Affected Products: Mozilla Firefox 3.6.x

-- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 10024. For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

-- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within handling of references to external font resources. A value is used as a 16 bit integer in an array allocation and later as 32 bit when iterating over and then populating these fields. By creating enough references, a remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser.

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

http://www.mozilla.org/security/announce/2010/mfsa2010-39.html

-- Disclosure Timeline: 2010-06-23 - Vulnerability reported to vendor 2010-07-20 - Coordinated public release of advisory

-- Credit: This vulnerability was discovered by: * J23 (http://twitter.com/HansJ23)

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