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Home » Hacking News » CSSA-2002-SCO.30-dtprintinfo buffer overflow with Help search

CSSA-2002-SCO.30-dtprintinfo buffer overflow with Help search

by Nikola Strahija on June 27th, 2002 The CDE dtprintinfo program is vulnerable to a buffer overflow condition that allows a local attacker to gain root access. The problem occurs due to insufficient bounds checking in the Volume search field from the Help section. An attacker can insert a specially crafted string for the search parameter and gain root privileges.


2. Vulnerable Supported Versions

System Binaries
----------------------------------------------------------------------
UnixWare 7.1.1 /usr/dt/lib/libDtHelp.so.1
Open UNIX 8.0.0 /usr/dt/lib/libDtHelp.so.1


3. Solution

The proper solution is to install the latest packages.


4. UnixWare 7.1.1

4.1 Location of Fixed Binaries

ftp://ftp.caldera.com/pub/updates/OpenUNIX/CSSA-2002-SCO.30


4.2 Verification

MD5 (erg712032.pkg.Z) = b654e5f739056ba4a73e07646e88f049

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


4.3 Installing Fixed Binaries

Upgrade the affected binaries with the following commands:

Download erg712032.pkg.Z to the /var/spool/pkg directory

# uncompress /var/spool/pkg/erg712032.pkg.Z
# pkgadd -d /var/spool/pkg/erg712032.pkg


5. Open UNIX 8.0.0

5.1 Location of Fixed Binaries

ftp://ftp.caldera.com/pub/updates/OpenUNIX/CSSA-2002-SCO.30


5.2 Verification

MD5 (erg712032.pkg.Z) = b654e5f739056ba4a73e07646e88f049

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


5.3 Installing Fixed Binaries

Upgrade the affected binaries with the following commands:

Download erg712032.pkg.Z to the /var/spool/pkg directory

# uncompress /var/spool/pkg/erg712032.pkg.Z
# pkgadd -d /var/spool/pkg/erg712032.pkg


6. References

Specific references for this advisory:
http://www.eSecurityOnline.com/advisories/eSO2406.asp
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0551

Caldera security resources:
http://www.caldera.com/support/security/index.html

This security fix closes Caldera incidents sr863696, fz520821,
erg712032.


7. Disclaimer

Caldera International, Inc. 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 Caldera products.


8. Acknowledgements

Kevin Kotas of eSecurityOnline discovered this vulnerability.

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