Date: Tue, 8 May 2001 08:54:44 -0500
From: Progeny Security Team <[email protected]>
To: [email protected]Subject: PROGENY-SA-2001-13: gFTP client potentially vulnerable to attack
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PROGENY SERVICE NETWORK -- SECURITY ADVISORY PROGENY-SA-2001-13
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Synopsis: gFTP client potentially vulnerable to attack.
Software: gftp
History:
2001-04-18 Vendor patch/fix available
2001-04-30 Update available in Progeny archive
2001-05-08 Advisory sent
Affects: Progeny Debian (gftp prior to 2.0.8-1progeny1)
Progeny Only: NO
Vendor-Status: New Version Released
(gftp_2.0.8-1progeny1)
$Id: gftp,v 1.5 2001/05/01 20:05:44 esmay Exp $
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DESCRIPTION
Versions of gFTP prior to 2.0.8 had a vulnerability related to format
strings which might allow a hostile FTP server to execute code on the
client system with the current user's privileges.
SOLUTION (See also: UPDATING VIA APT-GET)
Upgrade to a fixed version of gFTP. gFTP version 2.0.8 corrects the
problem. For your convenience, you may upgrade to the
gftp_2.0.8-1progeny1 package.
UPDATING VIA APT-GET
1. Ensure that your /etc/apt/sources.list file has a URI for Progeny's
update repository:
deb http://archive.progeny.com/progeny updates/newton/
2. Update your cache of available packages for apt(8).
Example:
# apt-get update
3. Using apt(8), install the new package. apt(8) will download the
update, verify its integrity with md5, and then install the
package on your system with dpkg(8).
Example:
# apt-get install gftp
UPDATING VIA DPKG
1. Use your preferred FTP/HTTP client to retrieve the following
updated files from Progeny's update archive at:
http://archive.progeny.com/progeny/updates/newton/
MD5 Checksum Filename
-------------------------------- -------------------------------------
5d14ef5556de541eed9dbc2c3842cd55 gftp-common_2.0.8-1progeny1_i386.deb
c086963abd6e085fe0ad8d69d244d89e gftp-gtk_2.0.8-1progeny1_i386.deb
3d9fe053682f05286e606c317ee1d71c gftp-text_2.0.8-1progeny1_i386.deb
fc142109adc12a9492c34316ca799b7e gftp_2.0.8-1progeny1_i386.deb
Example:
$ wget \
http://archive.progeny.com/progeny/updates/newton/gftp-common_2.0.8-1progeny1_i386.deb \
http://archive.progeny.com/progeny/updates/newton/gftp-gtk_2.0.8-1progeny1_i386.deb \
http://archive.progeny.com/progeny/updates/newton/gftp-text_2.0.8-1progeny1_i386.deb \
http://archive.progeny.com/progeny/updates/newton/gftp_2.0.8-1progeny1_i386.deb
2. Use the md5sum command on the retrieved files to verify that they
match the md5sum provided in this advisory:
Example:
$ md5sum gftp-common_2.0.8-1progeny1_i386.deb
3. Then install the replacement package(s) using the dpkg command.
Example:
# dpkg --install gftp-common_2.0.8-1progeny1_i386.deb gftp-gtk_2.0.8-1progeny1_i386.deb gftp-text_2.0.8-1progeny1_i386.deb gftp_2.0.8-1progeny1_i386.deb
WORKAROUND
No known workaround exists for this vulnerability.
MORE INFORMATION
gFTP's changelog can be viewed at http://gftp.seul.org/changelog.html.
Progeny advisories can be found at http://www.progeny.com/security/.
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pub 1024D/F92D4D1F 2001-04-04 Progeny Security Team <[email protected]>
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