Oracle Java ICC Profile clrt Tag Parsing Remote Code Execution Vulnerability

June 8th, 2011
ZDI-11-187 ZDI-CAN-1086

CVE ID

CVE-2011-0862

CVSS Score

9.0 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 the Oracle 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 way Java handles color profiles. When parsing a color profile containing a invalid 'clrt' tag, the process can be forced to overflow an integer value during an arithmetic operation. The newly calculated value is then used to allocate memory on the heap. By providing specific values it is possible to cause a memory corruption that can lead to remote code being executed under to user running the browser.

Additional Details

Oracle has issued an update to correct this vulnerability. More details can be found at:
http://www.oracle.com/technetwork/topics/security/javacpujune2011-313339.html

Disclosure Timeline

  • 2011-01-21 - Vulnerability reported to vendor
  • 2011-06-08 - Coordinated public release of advisory

Credit

Anonymous
Peter Vreugdenhil, TippingPoint DVLabs

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