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Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability JAV:



ZDI-10-061: Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability
ZDI-10-061: Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability



ZDI-10-061: Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-061 
April 5, 2010

-- CVE ID:
CVE-2010-0838

-- Affected Vendors:
Sun Microsystems

-- Affected Products:
Sun Microsystems Java Runtime

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Sun's Java Runtime. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page.

The specific flaw exists within the CMM module of the Sun JVM. This
module contains a function readMabCurveData. An applet can indirectly
call this function and provide it with a malicious curv object. The
function trusts the size of the curv element implicitly and copies the
data into a fixed-length stack buffer. Exploitation of this issue can
lead to arbitrary code execution under the context of the user invoking
the applet.

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

http://www.oracle.com/technology/deploy/security/critical-patch-updates/javacpumar2010.html 

-- Disclosure Timeline:
2009-11-09 - Vulnerability reported to vendor
2010-04-05 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* Stephen Fewer of Harmony Security (www.harmonysecurity.com) 

-- About the Zero Day Initiative (ZDI):
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