PowerCHM url buffer overflow

powerchm-url-bo (49882)

High Risk

Description:

PowerCHM is vulnerable to a stack-based buffer overflow, caused by improper bounds checking in HTML files. By persuading a victim to open a specially-crafted .HTML file containing an overly long url, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

*CVSS:

Base Score:	6.8
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	5.8
Exploitability:	Proof-of-Concept
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

No remedy available as of May 1, 2013.

References:

• Dawningsoft Web site: PowerCHM 5.7.
• BID-34517: PowerCHM HTML File Stack Buffer Overflow Vulnerability
• CVE-2009-1352: 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.
• OSVDB ID: 53901: PowerCHM HTML File URL Handling Overflow

Platforms Affected:

• Dawningsoft PowerCHM 5.7

Reported:

Apr 14, 2009

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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