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RedHat: 'xinetd' potential vulnerabilities exist Print E-mail
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Posted by Team   
RedHat Linux A security audit has been done by Solar Designer on xinetd, and theresults are now being made available as a preemptive measure.

                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated xinetd package available for Red Hat Linux 7 and 7.1
Advisory ID:       RHSA-2001:109-05
Issue date:        2001-08-31
Updated on:        2001-09-07
Product:           Red Hat Linux
Keywords:          xinetd memset segfault audit
Cross references:  
Obsoletes:         RHSA-2001:092

1. Topic:

A security audit has been done by Solar Designer on xinetd, and the
results are now being made available as a preemptive measure.

2. Relevant releases/architectures:

Red Hat Linux 7.0 - alpha, i386

Red Hat Linux 7.1 - alpha, i386, ia64

3. Problem description:

A security audit has been done by Solar Designer on xinetd, and the
results are now being made available as a preemptive measure. Also,
memsetting too much memory to 0 would eventually lead to segfaults when
executing services. This internal bug was fixed.

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):

48367 - telnet service fails after a couple of hours with xinetd-2.3.0
51737 - xinetd does not register all rpc versions with the portmapper

6. RPMs required:

Red Hat Linux 7.0:




Red Hat Linux 7.1:





7. Verification:

MD5 sum                           Package Name
d54431b9697f815a922000b3443daddb 7.0/en/os/SRPMS/xinetd-2.3.3-1.src.rpm
9169468c859c57b55c1ae26a6b0636a2 7.0/en/os/alpha/xinetd-2.3.3-1.alpha.rpm
548a0c82a06b69d1c24ed6f23dfd14f3 7.0/en/os/i386/xinetd-2.3.3-1.i386.rpm
d54431b9697f815a922000b3443daddb 7.1/en/os/SRPMS/xinetd-2.3.3-1.src.rpm
9169468c859c57b55c1ae26a6b0636a2 7.1/en/os/alpha/xinetd-2.3.3-1.alpha.rpm
548a0c82a06b69d1c24ed6f23dfd14f3 7.1/en/os/i386/xinetd-2.3.3-1.i386.rpm
2d16d9091b646fc68e28313493cab0bb 7.1/en/os/ia64/xinetd-2.3.3-1.ia64.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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