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SCO Security Advisory

Subject: UnixWare 7.1.3 Open UNIX 8.0.0 UnixWare 7.1.1 : perl unsafe Safe compartment
Advisory number: SCOSA-2004.1
Issue date: 2004 March 29
Cross reference: sr887197 fz528449 erg712495 CAN-2002-1323
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1. Problem Description

Safe.pm 2.0.7 and earlier, when used in Perl 5.8.0 and
earlier, may allow attackers to break out of safe compartments
in (1) Safe::reval or (2) Safe::rdo using a redefined @_
variable, which is not reset between successive calls.

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2002-1323 to this issue.

2. Vulnerable Supported Versions

System Binaries
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UnixWare 7.1.3 /usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm
Open UNIX 8.0.0 /usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm
UnixWare 7.1.1 /usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm

3. Solution

The proper solution is to install the latest packages.

4. UnixWare 7.1.3
Open UNIX 8.0.0
UnixWare 7.1.2

4.1 Location of Fixed Binaries

ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2004.1

4.2 Verification

MD5 (erg712495.Z) = a58a6ad7b7ea39ee48abc8bc3cc0d4fe

md5 is available for download from
ftp://ftp.sco.com/pub/security/tools

4.3 Installing Fixed Binaries

Upgrade the affected binaries with the following sequence:

1. Download the erg712495.Z file to a directory on your machine.

2. As root, uncompress the file and add the package to your system
using these commands:

# uncompress erg712495.Z
# pkgadd -d erg712495

3. There is no need to reboot the system after installing this package.

If you have questions regarding this supplement, or the product on
which it is installed, please contact your software supplier.

5. References

Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1323

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

SCO security advisories via email:
http://www.sco.com/support/forums/security.html

This security fix closes SCO incidents sr887197 fz528449
erg712495.

6. 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.

7. Acknowledgments

SCO would like to thank Andreas Jurenda

If you would like to receive SCO Security Advisories please visit:
http://www.thescogroup.com/support/forums/announce.html

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