To: bugtraq@securityfocus.com security-announce@lists.securityportal.com announce@lists.caldera.com scoannmod@xenitec.on.ca
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Caldera International, Inc. Security Advisory
Subject: Open Unix, UnixWare 7: dtaction argument buffer overflow
Advisory number: CSSA-2001-SCO.21
Issue date: 2001 October 1
Cross reference:
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1. Problem Description
Very long arguments to the dtaction command cause an argument
buffer overflow. This could be used by an unauthorized user
to gain privilege.
2. Vulnerable Versions
Operating System Version Affected Files
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UnixWare 7 All /usr/dt/bin/dtaction
Open Unix 8.0.0 /usr/dt/bin/dtaction
3. Workaround
None.
4. UnixWare 7
4.1 Location of Fixed Binaries
ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.21/
4.2 Verification
md5 checksums:
73300a4b513babf273c56ff67a4ff60e dtaction.Z
md5 is available for download from
ftp://stage.caldera.com/pub/security/tools/
4.3 Installing Fixed Binaries
Upgrade the affected binaries with the following commands:
# mv /usr/dt/bin/dtaction /usr/dt/bin/dtaction-
# uncompress /tmp/dtaction.Z
# cp dtaction /usr/dt/bin
# cd /usr/dt/bin
# chown root dtaction
# chgrp sys dtaction
# chmod 6555 dtaction
5. References
This and other advisories are located at
http://stage.caldera.com/support/security
This advisory addresses Caldera Security internal incident
sr847409.
6. Disclaimer
Caldera International, Inc. is not responsible for the misuse
of any of the information we provide on our website and/or
through our security advisories. Our advisories are a service
to our customers intended to promote secure installation and
use of Caldera International products.
7. Acknowledgements
Caldera International wishes to thank KF <dotslash@snosoft.com>
for discovering and reporting this problem.
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