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Moderately critical

McAfee VirusScan Enterprise On-Access Scanner Unicode Filename Buffer Overflow

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Release Date:  2007-04-18    Last Update:  2007-04-27    Views:  17,682

Secunia Advisory SA24914

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in McAfee VirusScan Enterprise, which can be exploited by malicious people to cause a DoS or to potentially compromise a vulnerable system.

The vulnerability is caused due to an error within the On-Access scanner component when processing file names that contain multi-byte characters (e.g. Chinese). This can be exploited to stop the On-Access scan or to cause a heap-based buffer overflow via a file with a specially crafted, overly long filename.

Successful exploitation may allow execution of arbitrary code but requires that East-Asia language files are installed, the default Unicode codepage is set to a language that contains multi-byte characters, and that the attacker is able to place the specially crafted file on the target system.

The vulnerability reportedly affects versions 8.0i Patch 11 and prior.


Solution:
Apply Patch 12 or later.

Further details available to Secunia VIM customers

Provided and/or discovered by:
iDefense Labs

Original Advisory:
McAfee:
https://knowledge.mcafee.com/SupportSite/dynamickc.do?externalId=612750&command=show&forward=nonthreadedKC

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=515

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: McAfee VirusScan Enterprise On-Access Scanner Unicode Filename Buffer Overflow

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