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To: bugtraq@securityfocus.com announce@lists.caldera.com
 security-alerts@linuxsecurity.com

______________________________________________________________________________

		Caldera International, Inc.  Security Advisory

Subject:		Linux: fetchmail imap message count vulnerability
Advisory number: 	CSSA-2002-027.0
Issue date: 		2002 June 17
Cross reference:
______________________________________________________________________________


1. Problem Description

	The fetchmail email client does not properly limit the maximum
	number of messages available. This allows a remote IMAP server to
	overwrite memory via a message count that exceeds the boundaries
	of an array.


2. Vulnerable Supported Versions

	System				Package
	----------------------------------------------------------------------

	OpenLinux 3.1.1 Server		prior to fetchmail-5.8.17-3.i386.rpm
					prior to fetchmailconf-5.8.17-3.i386.rpm

	OpenLinux 3.1.1 Workstation	prior to fetchmail-5.8.17-3.i386.rpm
					prior to fetchmailconf-5.8.17-3.i386.rpm

	OpenLinux 3.1 Server		prior to fetchmail-5.8.17-3.i386.rpm
					prior to fetchmailconf-5.8.17-3.i386.rpm

	OpenLinux 3.1 Workstation	prior to fetchmail-5.8.17-3.i386.rpm
					prior to fetchmailconf-5.8.17-3.i386.rpm


3. Solution

	The proper solution is to install the latest packages.


4. OpenLinux 3.1.1 Server

	4.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/RPMS

	4.2 Packages

	fe2a12a46105337465eaade27dcdfd19	fetchmail-5.8.17-3.i386.rpm
	5ee700b144f9888d71760c68af7bdd10	fetchmailconf-5.8.17-3.i386.rpm

	4.3 Installation

	rpm -Fvh fetchmail-5.8.17-3.i386.rpm
	rpm -Fvh fetchmailconf-5.8.17-3.i386.rpm

	4.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/SRPMS

	4.5 Source Packages

	d0baecda18a7f2602fe2b1634463addb	fetchmail-5.8.17-3.src.rpm


5. OpenLinux 3.1.1 Workstation

	5.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/RPMS

	5.2 Packages

	e53982b3b4bd650aeca7342b155fd150	fetchmail-5.8.17-3.i386.rpm
	66c50c0b2a80a01e5a6b80ee10b999cb	fetchmailconf-5.8.17-3.i386.rpm

	5.3 Installation

	rpm -Fvh fetchmail-5.8.17-3.i386.rpm
	rpm -Fvh fetchmailconf-5.8.17-3.i386.rpm

	5.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/SRPMS

	5.5 Source Packages

	282f59e2897e214270789b9bd12b1ebe	fetchmail-5.8.17-3.src.rpm


6. OpenLinux 3.1 Server

	6.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/RPMS

	6.2 Packages

	4e1d00de455d83703ef352b6954a26b5	fetchmail-5.8.17-3.i386.rpm
	0d86128975e46e9e739728157e4c8eef	fetchmailconf-5.8.17-3.i386.rpm

	6.3 Installation

	rpm -Fvh fetchmail-5.8.17-3.i386.rpm
	rpm -Fvh fetchmailconf-5.8.17-3.i386.rpm

	6.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/SRPMS

	6.5 Source Packages

	94f1a2221da6db44c31f5562a8935b83	fetchmail-5.8.17-3.src.rpm


7. OpenLinux 3.1 Workstation

	7.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/RPMS

	7.2 Packages

	7b6142d18892c4a4afe6a956f3a8ae51	fetchmail-5.8.17-3.i386.rpm
	6ca58cc1462555b90ff4b5c3a395adb8	fetchmailconf-5.8.17-3.i386.rpm

	7.3 Installation

	rpm -Fvh fetchmail-5.8.17-3.i386.rpm
	rpm -Fvh fetchmailconf-5.8.17-3.i386.rpm

	7.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/SRPMS

	7.5 Source Packages

	296fb5b80dbd73aefffad24b3998f33c	fetchmail-5.8.17-3.src.rpm


8. References

	Specific references for this advisory:
		http://tuxedo.org/~esr/fetchmail/NEWS
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0146

	Caldera security resources:
		http://www.caldera.com/support/security/index.html

	This security fix closes Caldera incidents sr865008, fz521068,
	erg712057.


9. Disclaimer

	Caldera International, Inc. is not responsible for the misuse
	of any of the information we provide on this website and/or
	through our security advisories. Our advisories are a service
	to our customers intended to promote secure installation and
	use of Caldera products.

______________________________________________________________________________

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