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Cyrus IMAP Server Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA14383
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Release Date:
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2005-02-24
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Last Update:
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2005-02-28
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Popularity:
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8,105 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Cyrus IMAP Server 2.x
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| CVE reference: | CVE-2005-0546
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Description:
Some vulnerabilities have been reported in Cyrus IMAP Server, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) An off-by-one boundary error in the mailbox handling can be exploited by malicious, authenticated users to cause a buffer overflow.
2) An off-by-one boundary error in the imapd annotate extension can be exploited by malicious, authenticated users to cause a buffer overflow.
3) An unspecified boundary error in fetchnews can be exploited by peer news admins to cause a stack-based buffer overflow.
4) An unspecified boundary error in backend can be exploited by malicious administrative users to cause a stack-based buffer overflow.
5) An unspecified boundary error in imapd can be exploited by malicious users on certain platforms to cause a stack-based buffer overflow.
Successful exploitation may allow execution of arbitrary code.
Solution:
Update to version 2.2.11 or later.
http://asg.web.cmu.edu/cyrus/download/
Provided and/or discovered by:
The vendor credits Sean Larsson.
Changelog:
2005-02-25: Updated advisory.
2005-02-28: Added CVE reference.
Original Advisory:
http://asg.web.cmu.edu/archive/messag...lbox=archive.info-cyrus&msg=33723
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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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