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ZDI-10-208: Oracle Java Runtime HeadspaceSoundbank.nGetName BANK Record Size Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Tue, 12 Oct 2010 17:24:47 -0500

ZDI-10-208: Oracle Java Runtime HeadspaceSoundbank.nGetName BANK Record Size Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-208
October 12, 2010

-- CVE ID:
CVE-2010-3559

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

-- Affected Vendors:
Oracle

-- Affected Products:
Oracle Java Runtime

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10073.
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 the Oracle Java Runtime. 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 the support for processing SoundBank
files. While parsing BANK records, the HeadspaceSoundbank.nGetName
function improperly sign-extends the one byte value into 4 bytes. It is
later used as the size to a memcpy when operating on the BANK record's
data. An attacker can abuse this to execute arbitrary code under the
context of the user running the web browser.

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

http://www.oracle.com/technetwork/topics/security/javacpuoct2010-176258.html

-- Disclosure Timeline:
2010-06-23 - Vulnerability reported to vendor
2010-10-12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

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