Red Hat Linux Security Advisory

Red Hat Linux Security Advisory
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Synopsis

Updated tcsh packages are now available for Red Hat Linux.

Advisory ID

RHSA-2000:121-04

Issue Date

2000-11-30

Updated On

2000-12-01

Product

Red Hat Linux

Keywords

tcsh symlink vulnerability

Cross References

N/A

Obsoletes

1. Topic:

Updated tcsh packages are now available for Red Hat Linux 5.2, 6.x, and 7.

2. Problem description:

Versions 6.09 and below of tcsh are vulnerable to a symbolic link attack.
This attack can be used to cause users to destroy the contents of any file
to which they have write access.

3. Bug IDs fixed: (see bugzilla for more information)

4. 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
Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 6.2EE - i386, alpha, sparc
Red Hat Linux 7.0 - i386, alpha
Red Hat Linux 7.0J - i386, alpha

5. RPMs required:

6. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

7. Verification:

MD5 sum                           Package Name
-------------------------------------------------------------------------
ef09e7d86a3ea3805fed90b4e409ce78  5.2/en/os/SRPMS/tcsh-6.10-0.5.x.src.rpm
871a2d33370517380173c327d91deb83  5.2/en/os/alpha/tcsh-6.10-0.5.x.alpha.rpm
e228b2179d2917067a2267d08eb4f9f1  5.2/en/os/i386/tcsh-6.10-0.5.x.i386.rpm
8c839a90f05ab9acb4b83dc620aee644  5.2/en/os/sparc/tcsh-6.10-0.5.x.sparc.rpm
4eb03f6ac99e3e6f15fa8e0a7f680530  6.0/en/os/SRPMS/tcsh-6.10-0.6.x.src.rpm
1a05f99e1fe6d5ec091160ee8012cd07  6.0/en/os/alpha/tcsh-6.10-0.6.x.alpha.rpm
6c66a718122e2a0f79bb0f6218082ebc  6.0/en/os/i386/tcsh-6.10-0.6.x.i386.rpm
eda7e5af943795c2c85050724d8f5deb  6.0/en/os/sparc/tcsh-6.10-0.6.x.sparc.rpm
4eb03f6ac99e3e6f15fa8e0a7f680530  6.1/en/os/SRPMS/tcsh-6.10-0.6.x.src.rpm
1a05f99e1fe6d5ec091160ee8012cd07  6.1/en/os/alpha/tcsh-6.10-0.6.x.alpha.rpm
6c66a718122e2a0f79bb0f6218082ebc  6.1/en/os/i386/tcsh-6.10-0.6.x.i386.rpm
eda7e5af943795c2c85050724d8f5deb  6.1/en/os/sparc/tcsh-6.10-0.6.x.sparc.rpm
4eb03f6ac99e3e6f15fa8e0a7f680530  6.2/en/os/SRPMS/tcsh-6.10-0.6.x.src.rpm
1a05f99e1fe6d5ec091160ee8012cd07  6.2/en/os/alpha/tcsh-6.10-0.6.x.alpha.rpm
6c66a718122e2a0f79bb0f6218082ebc  6.2/en/os/i386/tcsh-6.10-0.6.x.i386.rpm
eda7e5af943795c2c85050724d8f5deb  6.2/en/os/sparc/tcsh-6.10-0.6.x.sparc.rpm
8237e14a4430f4ca48dd4421a049bf3d  7.0/en/os/SRPMS/tcsh-6.10-1.src.rpm
c4ce83f418496f40e3e802da03db3e6f  7.0/en/os/alpha/tcsh-6.10-1.alpha.rpm
1fee54c9b1fc394c03a8d960937a9747  7.0/en/os/i386/tcsh-6.10-1.i386.rpm

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

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

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 filename

Note that you need RPM >= 3.0 to check GnuPG keys.

8. References:

http://www.securityfocus.com/vdb/bottom.html?vid=1926