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Secunia Advisory SA11087

Courier Japanese Codeset Conversion Buffer Overflow Vulnerabilities
Secunia Advisory SA11087
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Release Date 2004-03-11
Last Update 2004-07-06
   
Popularity 10,418 views
Comments 0 comments

Criticality level Moderately criticalModerately critical
Impact DoS
System access
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
Courier Mail Server 0.x
Courier-IMAP 2.x
SqWebMail 3.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2004-0224 CVSS available in Customer Area
  

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 in Customer Area

Provided and/or discovered by
Reported in changelog.

Changelog
Further details available in Customer Area

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

Deep Links
Links available in Customer Area


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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