NJStar Chinese Word Processor up to 5.x memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in NJStar Chinese Word Processor up to 5.x. This vulnerability affects unknown code. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2006-0807. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in NJStar Chinese Word Processor up to 5.x and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in NJStar Chinese and Japanese Word Processor 4.x and 5.x before 5.10 allows user-assisted attackers to execute arbitrary code via font names in NJStar (.njx) documents.

The bug was discovered 02/03/2006. The weakness was presented 02/20/2006 by Tan Chew Keong with Secunia Research as confirmed posting (Bugtraq). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2006-0807 since 02/21/2006. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 17 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.x eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (24773), SecurityFocus (BID 16737†), OSVDB (23354†), Secunia (SA18702†) and SecurityTracker (ID 1015649†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chinese Word Processor 4.x

Timelineinfo

02/20/2005 🔍
02/03/2006 +348 days 🔍
02/20/2006 +17 days 🔍
02/20/2006 +0 days 🔍
02/20/2006 +0 days 🔍
02/21/2006 +0 days 🔍
02/21/2006 +0 days 🔍
03/12/2015 +3306 days 🔍
08/02/2017 +874 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Tan Chew Keong
Organization: Secunia Research
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-0807 (🔍)
GCVE (CVE): GCVE-0-2006-0807
GCVE (VulDB): GCVE-100-28823
X-Force: 24773 - NJStar .njx font name buffer overflow
SecurityFocus: 16737 - NJStar Word Processor Remote Buffer Overflow Vulnerability
Secunia: 18702
OSVDB: 23354 - NJStar Word Processor Font Name Processing Overflow
SecurityTracker: 1015649 - NJStar Chinese/Japanese Word Processor Buffer Overflow in Font Names Lets Remote Users Execute Arbitrary Code
Vupen: ADV-2006-0670

Entryinfo

Created: 03/12/2015 11:11
Updated: 08/02/2017 11:27
Changes: 03/12/2015 11:11 (57), 08/02/2017 11:27 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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