Date: 04 January 2006
Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2006.0003 -- [UNIX/Linux][SCO]
A vulnerability in LibTIFF allows execution of arbitrary code
4 January 2006
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: LibTIFF
Publisher: SCO
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2005-1544
Original Bulletin:
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.3/SCOSA-2006.3.txt
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
______________________________________________________________________________
SCO Security Advisory
Subject: OpenServer 5.0.6 OpenServer 5.0.7 OpenServer 6.0.0 : LibTIFF BitsPerSample Tag Buffer Overflow Vulnerability
Advisory number: SCOSA-2006.3
Issue date: 2006 January 03
Cross reference: sr894565 fz532776 erg712890
sr894563 fz532777 erg712888
CVE-2005-1544
______________________________________________________________________________
1. Problem Description
Tavis Ormandy has reported a vulnerability in libTIFF, which
potentially can be exploited by malicious people to compromise a
vulnerable system.
The vulnerability is caused due to a boundary error and can be
exploited to cause a buffer overflow via a specially crafted
TIFF image containing a malformed BitsPerSample tag.
Successful exploitation may allow execution of arbitrary code,
if a malicious TIFF image is opened in an application linked
against the vulnerable library.
The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2005-1544 to this issue.
2. Vulnerable Supported Versions
System Binaries
----------------------------------------------------------------------
OpenServer 5.0.6 /usr/lib/libtiff.so.3
OpenServer 5.0.7 /usr/lib/libtiff.so.3
OpenServer 6.0.0 /usr/lib/libtiff.so.3
/osr5/usr/lib/libtiff.so.3
3. Solution
The proper solution is to install the latest packages.
4. OpenServer 5.0.6
4.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/openserver5/opensrc/gwxlibs-2.1.0Ba/
4.2 Verification
MD5 (gwxlibs210Ba_vol.tar) = 18213632bd0c5ff1e260eac90aae7033
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
4.3 Installing Fixed Binaries
Please see the following:
ftp://ftp.sco.com/pub/openserver5/opensrc/gwxlibs-2.1.0Ba/gwxlibs-2.1.0Ba.txt
5. OpenServer 5.0.7
5.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/openserver5/507/mp/osr507mp4/osr507mp4_vol.tar
5.2 Verification
MD5 (osr507mp4_vol.tar) = 4c87d840ff5b43221258547d19030228
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
5.3 Installing Fixed Binaries
See the SCO OpenServer Release 5.0.7 Maintenance Pack 4 Release
and Installation Notes:
ftp://ftp.sco.com/pub/openserver5/507/mp/osr507mp4/osr507mp4.htm
6. OpenServer 6.0.0
6.1 Location of Fixed Binaries
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.3
6.2 Verification
MD5 (VOL.000.000) = b38ae14a80e730498581e6a4ce64aa11
md5 is available for download from
ftp://ftp.sco.com/pub/security/tools
6.3 Installing Fixed Binaries
Upgrade the affected binaries with the following sequence:
1) Download the VOL* files to a directory.
2) Run the custom command, specify an install from media images,
and specify the directory as the location of the images.
7. References
Specific references for this advisory:
http://bugzilla.remotesensing.org/show_bug.cgi
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1544
http://secunia.com/advisories/15320
http://xforce.iss.net/xforce/xfdb/20533
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 sr894565 fz532776
erg712890 sr894563 fz532777 erg712888.
8. 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.
9. Acknowledgments
The SCO Group would like to thank Travis Ormandy.
______________________________________________________________________________
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (UnixWare)
iD8DBQFDuu8PaqoBO7ipriERAnokAJ0b8V8ydCVmO4nizzrPh7ltJQdwxwCfXAc5
jksfEo2hTVuUEczh19s+5+U=
=9qSn
- -----END PGP SIGNATURE-----
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBQ7se2Sh9+71yA2DNAQL1FQP/a4tg1Eq3IiaBnGUr4TTI91wAQ8Qde0+J
BCY+oHN0hEpa/2ClbES335LZtO2g6rhUDJj3NAdAdupwL0HyX5qbTuknp1KtJjQQ
tVrdlXimr95gLfHHPgbOEE2iTf5y4GYoPP6RmKxiRzds/YZmfgQZxYpGMzoQXUFd
tlu/UIb1PdE=
=C/bJ
-----END PGP SIGNATURE-----
|