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Insecure Library Loading
Moderately critical

Courier Japanese Codeset Conversion Buffer Overflow Vulnerabilities

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Release Date:  2004-03-11    Last Update:  2004-07-06    Views:  12,607

Secunia Advisory SA11087

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in Courier, which potentially can be exploited to cause a DoS (Denial of Service) or compromise a vulnerable system.

The vulnerabilities are reportedly caused due to boundary errors within the Shift-JIS ("shiftjis.c") and ISO2022JP ("iso2022jp.c") Japanese codeset converters when handling non-BMP (Basic Multilingual Plane) Unicode characters.

According to the developers, the Shift-JIS and ISO2022JP codeset mappings may be used by the IMAP and Webmail service but are not enabled by default.


Solution:
The vulnerabilities have been fixed in the following versions:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Reported in changelog.

Original Advisory:
http://sourceforge.net/project/shownotes.php?release_id=5767

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: Courier Japanese Codeset Conversion Buffer Overflow Vulnerabilities

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