ZDI-12-083 : Oracle Java OpenAL Library Pointer Manipulation Remote Code Execution Vulnerability

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ZDI-12-083 : Oracle Java OpenAL Library Pointer Manipulation Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-083
June 6, 2012

• – CVSS:
  7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P

• – Affected Vendors:

Oracle

• – Affected Products:

Oracle 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 in the Java OpenAL (JOAL) library. This library is
not installed by default with Java, but it is available as a signed .jar
package. The affected jar files are signed with a certificate that is
trusted by default JRE installs and as such are downloaded and run without
user interaction. Crafted Java applets can reach a call to
'dispatch_alDeleteBuffers1' that takes a user controllable int and uses it
as a function pointer. This can lead to remote code execution under the
context of the current process.

• – Vendor Response:

Oracle has issued an update to correct this vulnerability. More details can
be found at:

http://www.oracle.com/technetwork/topics/security/javacpufeb2012-366318.htm
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• – Disclosure Timeline:
  2011-12-22 - Vulnerability reported to vendor
  2012-06-06 - Coordinated public release of advisory

• – Credit:
  This vulnerability was discovered by:

• Chris Ries

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