Hancom Word Viewer 2007/2010/2014 HwpApp::CHncSDS_Manager numeric error

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Hancom Word Viewer 2007/2010/2014. Affected by this issue is the function HwpApp::CHncSDS_Manager. Performing a manipulation results in numeric error. This vulnerability is reported as CVE-2015-2810. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Hancom Word Viewer 2007/2010/2014. It has been classified as problematic. This affects the function HwpApp::CHncSDS_Manager. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. The summary by CVE is:

Integer overflow in the HwpApp::CHncSDS_Manager function in Hancom Office HanWord processor, as used in Hwp 2014 VP before 9.1.0.2342, HanWord Viewer 2007 and Viewer 2010 8.5.6.1158, and HwpViewer 2014 VP 9.1.0.2186, allows remote attackers to cause a denial of service (crash) and possibly "influence the program's execution flow" via a document with a large paragraph size, which triggers heap corruption.

The weakness was disclosed 05/15/2015 with FireEye as not defined mailinglist post (Bugtraq). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2015-2810 since 03/31/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 74153†) and Vulnerability Center (SBV-50428†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Hancom

Name

• Word Viewer

Version

• 2007
• 2010
• 2014

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/31/2015 🔍
04/15/2015 +15 days 🔍
04/15/2015 +0 days 🔍
05/15/2015 +30 days 🔍
05/15/2015 +0 days 🔍
05/17/2015 +2 days 🔍
06/09/2015 +23 days 🔍
06/30/2017 +752 days 🔍

Sourcesinfo

Advisory: seclists.org
Organization: FireEye
Status: Not defined

CVE: CVE-2015-2810 (🔍)
GCVE (CVE): GCVE-0-2015-2810
GCVE (VulDB): GCVE-100-75417
SecurityFocus: 74153 - Hancom HanWord Processor CVE-2015-2810 Remote Integer Overflow Vulnerability
Vulnerability Center: 50428 - Hancom HanWord Viewer Remote Integer Overflow in CHncSDS_Manager(), High

Entryinfo

Created: 05/17/2015 09:53
Updated: 06/30/2017 05:48
Changes: 05/17/2015 09:53 (54), 06/30/2017 05:48 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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