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SCO Security Advisory

Subject: OpenLinux: file command buffer overflow
Advisory number: CSSA-2003-018.0
Issue date: 2003 April 28
Cross reference:
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1. Problem Description

The file command is vulnerable to a buffer overflow when given
a maliciously crafted binary to examine.

2. Vulnerable Supported Versions

System Package
----------------------------------------------------------------------

OpenLinux 3.1.1 Server prior to file-3.28-8.i386.rpm

OpenLinux 3.1.1 Workstation prior to file-3.28-8.i386.rpm

OpenLinux 3.1 Server prior to file-3.28-8.i386.rpm

OpenLinux 3.1 Workstation prior to file-3.28-8.i386.rpm

3. Solution

The proper solution is to install the latest packages. Many
customers find it easier to use the Caldera System Updater, called
cupdate (or kcupdate under the KDE environment), to update these
packages rather than downloading and installing them by hand.

4. OpenLinux 3.1.1 Server

4.1 Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-018.0/RPM
S

4.2 Packages

d0ad82669f9b01fd96dfcc62dc94f57c file-3.28-8.i386.rpm

4.3 Installation

rpm -Fvh file-3.28-8.i386.rpm

4.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-018.0/SRP
MS

4.5 Source Packages

8c906c8f4ef25a26e7bcde0a93c3b674 file-3.28-8.src.rpm

5. OpenLinux 3.1.1 Workstation

5.1 Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-018.
0/RPMS

5.2 Packages

d1a99e375dfd64eaf46cc9b0db3132c2 file-3.28-8.i386.rpm

5.3 Installation

rpm -Fvh file-3.28-8.i386.rpm

5.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-018.
0/SRPMS

5.5 Source Packages

8d667b887a27ea3973a5049505910944 file-3.28-8.src.rpm

6. OpenLinux 3.1 Server

6.1 Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-018.0/RPMS

6.2 Packages

9bb629d683cd6f97d490c16e069f9593 file-3.28-8.i386.rpm

6.3 Installation

rpm -Fvh file-3.28-8.i386.rpm

6.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-018.0/SRPMS

6.5 Source Packages

2f3aeeba02521523d0a74518d44cae96 file-3.28-8.src.rpm

7. OpenLinux 3.1 Workstation

7.1 Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-018.0/
RPMS

7.2 Packages

e464c56f403a596e7a8faae665d6f1cf file-3.28-8.i386.rpm

7.3 Installation

rpm -Fvh file-3.28-8.i386.rpm

7.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-018.0/
SRPMS

7.5 Source Packages

02bb22adeb36b09cfef84cb210ee7114 file-3.28-8.src.rpm

8. References

Specific references for this advisory:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0102

SCO security resources:

http://www.sco.com/support/security/index.html

This security fix closes SCO incidents sr876782, fz527684,
erg712286.

9. Disclaimer

SCO is not responsible for the misuse of any of the information
we provide on this website and/or through our security
advisories. Our advisories are a service to our customers intended
to promote secure installation and use of SCO products.

10. Acknowledgements

David Endler of iDEFENSE discovered and researched this vulnerability.

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