ZDI-10-061: Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability

2010-04-06T00:00:00
ID SECURITYVULNS:DOC:23570
Type securityvulns
Reporter Securityvulns
Modified 2010-04-06T00:00:00

Description

ZDI-10-061: Sun Java Runtime CMM readMabCurveData Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-061 April 5, 2010

-- CVE ID: CVE-2010-0838

-- Affected Vendors: Sun Microsystems

-- Affected Products: Sun Microsystems Java Runtime

-- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun's 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 CMM module of the Sun JVM. This module contains a function readMabCurveData. An applet can indirectly call this function and provide it with a malicious curv object. The function trusts the size of the curv element implicitly and copies the data into a fixed-length stack buffer. Exploitation of this issue can lead to arbitrary code execution under the context of the user invoking the applet.

-- Vendor Response: 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

-- Disclosure Timeline: 2009-11-09 - Vulnerability reported to vendor 2010-04-05 - Coordinated public release of advisory

-- Credit: This vulnerability was discovered by: * Stephen Fewer of Harmony Security (www.harmonysecurity.com)

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