IBM Forms Viewer up to memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical was found in IBM Forms Viewer up to This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in IBM Forms Viewer 4.x before and 8.x before allows remote attackers to execute arbitrary code via an XFDL form with a long fontname value.

The weakness was published 12/10/2013 (Website). The advisory is available at This vulnerability was named CVE-2013-5447. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Metasploit and been published 4 weeks after the advisory. It is possible to download the exploit at It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 72026 (IBM Forms Viewer Stack Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows.

Upgrading to version eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 13654.

The vulnerability is also documented in the databases at X-Force (87911), Exploit-DB (30789), Tenable (72026) and Vulnerability Center (SBV-42692†).






CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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Class: Memory corruption
CWE: CWE-119

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Metasploit
Download: 🔍

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Nessus ID: 72026
Nessus Name: IBM Forms Viewer Stack Buffer Overflow
Nessus File: 🔍
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Nessus Family: 🔍

MetaSploit ID: ibm_forms_viewer_fontname.rb
MetaSploit Name: IBM Forms Viewer Unicode Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Forms Viewer
TippingPoint: 🔍

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08/22/2013 🔍
12/10/2013 +110 days 🔍
12/10/2013 +0 days 🔍
12/10/2013 +0 days 🔍
12/23/2013 +13 days 🔍
01/07/2014 +15 days 🔍
01/07/2014 +0 days 🔍
01/19/2014 +12 days 🔍
03/24/2015 +429 days 🔍
06/22/2024 +3378 days 🔍



Advisory: 124658
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-5447 (🔍)

X-Force: 87911
Vulnerability Center: 42692 - IBM Forms Viewer before and before Remote Code Execution Vulnerability via Crafted XFDL Form, Medium

scip Labs:


Created: 03/24/2015 03:54 PM
Updated: 06/22/2024 07:38 AM
Changes: 03/24/2015 03:54 PM (68), 05/18/2017 05:13 PM (11), 01/11/2022 02:49 PM (4), 01/11/2022 02:51 PM (1), 06/22/2024 07:38 AM (15)
Complete: 🔍
Cache ID: 44:36E:40


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