Advisory Details

October 26th, 2011

Oracle Java MixerSequencer.nAddControllerEventCallback Remote Code Execution Vulnerability

ZDI-11-307
ZDI-CAN-1218

CVE ID CVE-2011-3545
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Oracle
AFFECTED PRODUCTS Java Runtime
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Oracle Java. 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 because Java does not sufficiently verify parameters certain functions. The function MixerSequencer.nAddControllerEventCallback fails to check for negative index numbers before writing user supplied data into a static array. This allows a malicious applet to write user controlled data outside the array boundaries resulting in remote code execution under the context of the current user.

ADDITIONAL DETAILS Oracle has issued an update to correct this vulnerability. More details can be found at:
http://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html
DISCLOSURE TIMELINE
  • 2011-05-12 - Vulnerability reported to vendor
  • 2011-10-26 - Coordinated public release of advisory
CREDIT axtaxt
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