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SCO Security Advisory

Subject: OpenLinux: rsync heap based overflow
Advisory number: CSSA-2004-010.0
Issue date: 2004 March 02
Cross reference: sr888533 fz528609 erg712514 CAN-2003-0962
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1. Problem Description

Heap-based buffer overflow in rsync before 2.5.7, when running in
server mode, allows remote attackers to execute arbitrary code
and possibly escape the chroot jail.

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2003-0962 to this issue.

2. Vulnerable Supported Versions

System Package
----------------------------------------------------------------------
OpenLinux 3.1.1 Server prior to rsync-2.5.7-1.i386.rpm
OpenLinux 3.1.1 Workstation prior to rsync-2.5.7-1.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-2004-010.0/RPM
S

4.2 Packages

4fb00e592531f020fcb4f42153c27b47 rsync-2.5.7-1.i386.rpm

4.3 Installation

rpm -Fvh rsync-2.5.7-1.i386.rpm

4.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2004-010.0/SRP
MS

4.5 Source Packages

04c03598ea2f99c603933b7a0f1132a3 rsync-2.5.7-1.src.rpm

5. OpenLinux 3.1.1 Workstation

5.1 Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2004-010.
0/RPMS

5.2 Packages

c2cf07248715486ecb89235a69183eb2 rsync-2.5.7-1.i386.rpm

5.3 Installation

rpm -Fvh rsync-2.5.7-1.i386.rpm

5.4 Source Package Location

ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2004-010.
0/SRPMS

5.5 Source Packages

eb5c948fd8bb5128230346ac51f48a35 rsync-2.5.7-1.src.rpm

6. References

Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0962

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

This security fix closes SCO incidents sr888533 fz528609
erg712514.

7. 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.

8. Acknowledgements

SCO would like to thank Mike Warfield, Paul Russell, and Andrea Barisani
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