IBM Java up to 7.0 Sandbox invoke memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in IBM Java up to 7.0 (Programming Language Software). Affected is the function invoke of the component Sandbox. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 11/13/2012 by Adam Gowdiak with Security Explorations as confirmed advisory (Website). The advisory is available at This vulnerability is traded as CVE-2012-4820 since 09/06/2012. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 63281 (IBM Lotus Notes 8.5.1 / 8.5.2 / 8.5.3 < 8.5.3 FP3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121159 (IBM Java SDK Multiple Vulnerabilities (IBM Security Update November 2012)).

Upgrading to version 7 SR3, 6.0.1 SR4, 6 SR12, 5 SR15, eliminates this vulnerability. Applying the patch is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13090.

The vulnerability is also documented in the databases at X-Force (78764), Vulnerability Center (SBV-37514) and Tenable (63281). The entries 6941, 6943, 6944 and 7191 are pretty similar.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 63281
Nessus Name: IBM Lotus Notes 8.5.1 / 8.5.2 / 8.5.3 < 8.5.3 FP3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Java 7 SR3, 6.0.1 SR4, 6 SR12, 5 SR15,
TippingPoint: 🔍

McAfee IPS: 🔍
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09/06/2012 🔍
09/11/2012 +5 days 🔍
09/11/2012 +0 days 🔍
11/13/2012 +63 days 🔍
11/13/2012 +0 days 🔍
11/14/2012 +1 days 🔍
11/14/2012 +0 days 🔍
11/16/2012 +2 days 🔍
12/04/2012 +18 days 🔍
12/17/2012 +13 days 🔍
01/10/2013 +24 days 🔍
04/19/2021 +3021 days 🔍



Researcher: Adam Gowdiak
Organization: Security Explorations
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-4820 (🔍)

X-Force: 78764 - IBM Java java.lang.reflect.Method invoke() code execution, High Risk
Vulnerability Center: 37514 - IBM Java Insecure Use of \x27invoke()\x27 Method in java.lang.reflect.Method Allows Remote Code Execution, Medium
SecurityFocus: 55495 - IBM Java Multiple Remote Code Execution Vulnerabilities
Secunia: 51244 - IBM Java Multiple Vulnerabilities, Highly Critical
OSVDB: 87300

See also: 🔍


Created: 11/16/2012 10:44 AM
Updated: 04/19/2021 11:38 AM
Changes: 11/16/2012 10:44 AM (88), 04/22/2017 12:47 PM (6), 04/19/2021 11:38 AM (2)
Complete: 🔍


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