Dawningsoft PowerCHM 5.7 memory corruption

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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.
9.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Dawningsoft PowerCHM 5.7 and classified as critical. Affected by this vulnerability is an unknown functionality. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2009-1352. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Dawningsoft PowerCHM 5.7. Affected by this issue is 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. CVE summarizes:

Stack-based buffer overflow in Dawningsoft PowerCHM 5.7 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an HTML file with a link to a long URL, as demonstrated by a .rar URL.

The weakness was presented 04/21/2009 (Website). The advisory is shared for download at milw0rm.com. This vulnerability is handled as CVE-2009-1352 since 04/21/2009. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/18/2025).

A public exploit has been developed by SuB-ZeRo and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116371 (PowerCHM HTML File Stack Buffer Overflow Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (49882), Exploit-DB (8434) and SecurityFocus (BID 34517†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Dawningsoft

Name

PowerCHM

Version

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.4

VulDB Base Score: 10.0
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: SuB-ZeRo
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/14/2009 🔍
04/14/2009 +0 days 🔍
04/14/2009 +0 days 🔍
04/21/2009 +7 days 🔍
04/21/2009 +0 days 🔍
04/21/2009 +0 days 🔍
03/17/2015 +2156 days 🔍
04/18/2025 +3685 days 🔍