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Eudora Multiple Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA25282
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Release Date:
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2007-05-16
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Last Update:
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2007-06-13
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Popularity:
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5,815 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Eudora 7.x
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Binary Analysis:
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BA130 :: Available for 1 Credit 
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| CVE reference: | CVE-2007-2770
CVE-2007-3166
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Description:
Krystian Kloskowski has discovered some vulnerabilities in Eudora, which can be exploited by malicious people to compromise a user's system.
1) A boundary error when processing SMTP server reply strings can be exploited to cause a stack-based buffer overflow via an overly long, specially crafted SMTP reply string.
Successful exploitation allows execution of arbitrary code when a user sends an email, but requires that the user is tricked into connecting to a malicious SMTP server by editing the application's settings. Also, the user has to click on "Cancel" when presented with the buffer overflow warning message box.
2) A boundary error when processing IMAP FLAGS responses can be exploited to cause a stack based buffer overflow via a specially crafted response containing overly long strings.
Successful exploitation allows execution of arbitrary code, but requires that a user is tricked into connecting to a malicious IMAP server.
The vulnerabilities are confirmed in version 7.1.0.9. Other versions may also be affected.
Solution:
Do not use untrusted mail servers.
Provided and/or discovered by:
Krystian Kloskowski (h07)
Changelog:
2007-05-22: Added CVE reference.
2007-05-31: Added vulnerability #2. Updated "Criticality".
2007-06-13: Added CVE reference.
Original Advisory:
1) http://milw0rm.com/exploits/3934
2) http://milw0rm.com/exploits/4014
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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