Advisory Details

December 21st, 2012

Oracle Outside In WordPerfect File Processing Remote Code Execution Vulnerability

ZDI-12-202
ZDI-CAN-1480

CVE ID
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Oracle
AFFECTED PRODUCTS Outside In
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable products utilizing the Oracle Outside In technology. 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 handling of WordPerfect files. When parsing font records the code within vswp5.dll does not validate the datasize value prior to performing arithmetic on it. The result is used to make a heap allocation
that can be undersized which can be leveraged to corrupt memory leading to arbitrary code execution under the context of the user running the application.

ADDITIONAL DETAILS Oracle has issued an update to correct this vulnerability. More details can be found at:
http://www.oracle.com/technetwork/topics/security/cpuapr2012-366314.html
DISCLOSURE TIMELINE
  • 2011-12-19 - Vulnerability reported to vendor
  • 2012-12-21 - Coordinated public release of advisory
CREDIT gwslabs.com
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