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Credit:
The information has been provided by regenrecht.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-10-059
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Vulnerable Systems:
Sun Microsystems Java Runtime Environment (JRE)
User interaction is required to exploit this vulnerability in that the target must visit a malicious page.
The specific flaw exists within a function responsible for creating a JPEG image encoder. The function makes an invalid assignment based on the value of the num_components element of a comp_info structure while parsing a JPEG file. It then improperly uses the original value while performing memory copy operations. By specifying certain values as the num_components field this can be exploited to gain arbitrary code execution by overflowing an undersized buffer on the heap.
Patch Availability:
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
CVE Information:
CVE-2010-0846
Disclosure Timeline:
2010-01-06 - Vulnerability reported to vendor
2010-04-05 - Coordinated public release of advisory
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