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RedHat: gftp format string vulnerability Print E-mail
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Posted by Team   
RedHat Linux Update to gftp version 2.0.8, which improvesfunctionality and fixes a format string vulnerability.

                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          gftp format string vulnerability corrected
Advisory ID:       RHSA-2001:053-06
Issue date:        2001-04-20
Updated on:        2001-04-23
Product:           Red Hat Linux
Keywords:          gftp format
Cross references:  

1. Topic:

An updated gftp package is available for Red Hat Linux 6.2 and 7.1. This
package contains an upgrade to gftp version 2.0.8, which improves
functionality and fixes a format string vulnerability.

2. Relevant releases/architectures:

Red Hat Linux 6.2 - alpha, i386, sparc

Red Hat Linux 7.0 - alpha, i386

Red Hat Linux 7.1 - i386

3. Problem description:

Previous gftp versions had a problem with format strings allowing malicious
ftp servers to potentially execute code on the gftp user's system.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:


This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed  (http://bugzilla.Red for more info):

36479 - gftp<2.0.8 has format string errors

6. RPMs required:

Red Hat Linux 6.2:





Red Hat Linux 7.0:




Red Hat Linux 7.1:



7. Verification:

MD5 sum                           Package Name
0ee088a2baafadfb606fe3444b9eaac5 6.2/en/os/SRPMS/gftp-2.0.8-1.src.rpm
62496330bf7672832614ee6b4a883538 6.2/en/os/alpha/gftp-2.0.8-1.alpha.rpm
2d558aa84ae684d95bb4298df9115197 6.2/en/os/i386/gftp-2.0.8-1.i386.rpm
a6105962b4b770a84df84bec93c0b557 6.2/en/os/sparc/gftp-2.0.8-1.sparc.rpm
9e2bdc84ce2284ad18b2e7e270b4b38b 7.0/en/os/SRPMS/gftp-2.0.8-1.src.rpm
bdd3802fc30e4bf2cce26f3d8b87c703 7.0/en/os/alpha/gftp-2.0.8-1.alpha.rpm
8b922c99ef3fc32a1342cbd378d98443 7.0/en/os/i386/gftp-2.0.8-1.i386.rpm
9e2bdc84ce2284ad18b2e7e270b4b38b 7.1/en/os/SRPMS/gftp-2.0.8-1.src.rpm
8b922c99ef3fc32a1342cbd378d98443 7.1/en/os/i386/gftp-2.0.8-1.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:

You can verify each package with the following command:
    rpm --checksig  

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg 

8. References:

Copyright(c) 2000, 2001 Red Hat, Inc.

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