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RedHat: nmh vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
RedHat Linux By creating specially formed MIME headers, it was possibleto have nmh's 'mhshow' utility execute arbitrary shell code.
---------------------------------------------------------------------
                   Red Hat, Inc. Security Advisory

Synopsis:          New nmh packages available
Advisory ID:       RHSA-2000:006-01
Issue date:        2000-03-06
Updated on:        2000-03-06
Product:           Red Hat Linux
Keywords:          nmh mime mhshow
Cross references:  N/A
---------------------------------------------------------------------

1. Topic:

New nmh packages are available to fix a security problem in
mime header parsing.

2. Relevant releases/architectures:

Red Hat Linux 5.2 - i386 alpha sparc
Red Hat Linux 6.0 - i386 alpha sparc
Red Hat Linux 6.1 - i386 alpha sparc


3. Problem description:

By creating specially formed MIME headers, it was possible
to have nmh's 'mhshow' utility execute arbitrary shell code.

It is recommended that all users of nmh upgrade to the fixed
packages.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

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

9921 - security bug in nmh


6. Obsoleted by:

N/A

7. Conflicts with:

N/A

8. RPMs required:


Red Hat Linux 5.2:

intel:
ftp://updates.Red Hat.com/5.2/i386/nmh-1.0.3-5x.i386.rpm

alpha:
ftp://updates.Red Hat.com/5.2/alpha/nmh-1.0.3-5x.alpha.rpm

sparc:
ftp://updates.Red Hat.com/5.2/sparc/nmh-1.0.3-5x.sparc.rpm

sources:
ftp://updates.Red Hat.com/5.2/SRPMS/nmh-1.0.3-5x.src.rpm

Red Hat Linux 6.0:

intel:
ftp://updates.Red Hat.com/6.0/i386/nmh-1.0.3-6x.i386.rpm

alpha:
ftp://updates.Red Hat.com/6.0/alpha/nmh-1.0.3-6x.alpha.rpm

sparc:
ftp://updates.Red Hat.com/6.0/sparc/nmh-1.0.3-6x.sparc.rpm

sources:
ftp://updates.Red Hat.com/6.0/SRPMS/nmh-1.0.3-6x.src.rpm

Red Hat Linux 6.1:

intel:
ftp://updates.Red Hat.com/6.1/i386/nmh-1.0.3-6x.i386.rpm

alpha:
ftp://updates.Red Hat.com/6.1/alpha/nmh-1.0.3-6x.alpha.rpm

sparc:
ftp://updates.Red Hat.com/6.1/sparc/nmh-1.0.3-6x.sparc.rpm

sources:
ftp://updates.Red Hat.com/6.1/SRPMS/nmh-1.0.3-6x.src.rpm


9. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
158d9ce6bcbc130fdcc069218440c14e  6.0/alpha/nmh-1.0.3-6x.alpha.rpm
34ff509708a6878e9b58b5ed98cb27df  5.2/alpha/nmh-1.0.3-5x.alpha.rpm
158d9ce6bcbc130fdcc069218440c14e  6.1/alpha/nmh-1.0.3-6x.alpha.rpm
829927f436bab62a4a6b3e9ba0b8ab36  6.0/SRPMS/nmh-1.0.3-6x.src.rpm
383e55c58bea25d6fa73216e86fc27ba  5.2/SRPMS/nmh-1.0.3-5x.src.rpm
829927f436bab62a4a6b3e9ba0b8ab36  6.1/SRPMS/nmh-1.0.3-6x.src.rpm
ca6a19156b88516362e9404b8ac8fd06  5.2/sparc/nmh-1.0.3-5x.sparc.rpm
59a31706a3747717e6aaec9c5f1b3122  6.0/sparc/nmh-1.0.3-6x.sparc.rpm
59a31706a3747717e6aaec9c5f1b3122  6.1/sparc/nmh-1.0.3-6x.sparc.rpm
5633c3097e0f6503615957778d572b52  5.2/i386/nmh-1.0.3-5x.i386.rpm
272c5a8bbdd1c6b7ed60595cf4521d01  6.0/i386/nmh-1.0.3-6x.i386.rpm
272c5a8bbdd1c6b7ed60595cf4521d01  6.1/i386/nmh-1.0.3-6x.i386.rpm


These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
    http://www.Red Hat.com/corp/contact.html

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 

10. References:

N/A
 
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