Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2013.0095
Security Bulletin: IBM Informix Genero vulnerable to libpng chunk
decompression integer overflow vulnerability (CVE-2011-3026)
22 January 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Informix Genero
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Impact/Access: Denial of Service -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2011-3026
Reference: ESB-2012.0190
ESB-2012.0178
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21620982
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: IBM Informix Genero vulnerable to libpng chunk decompression
integer overflow vulnerability (CVE-2011-3026).
Flash (Alert)
Document information
Informix Tools
Informix Genero
Software version:
2.0, 2.1, 2.2, 2.3, 2.4
Operating system(s):
AIX, HP-UX, Linux, Solaris
Reference #:
1620982
Modified date:
2013-01-18
Abstract
A remote, unauthenticated attacker can exploit an integer overflow
vulnerability in the libpng library to cause a crash or execute malicious code
on a vulnerable system.
Content
CVE ID: CVE-2011-3026
DESCRIPTION:
The libpng library used by IBM Informix Genero contains an integer overflow
vulnerability. If you use IBM Informix Genero to handle PNG (Portable Network
Graphics) image files and an attacker causes your IBM Informix Genero program
to open or display a malicious PNG file, your IBM Informix Genero application
might crash, or could be caused to run malicious code with the privileges of
the user running the application.
CVSS:
CVSS Base Score: 6.8
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/73240 for the
current score
CVSS Environmental Score*: Undefined
CVSS String: (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED PLATFORMS:
IBM Informix Genero releases prior to 2.41 - all platforms
REMEDIATION:
Fix(es):
The fix is available in the IBM Informix Genero 2.41 version that became
available in Passport Advantage on December 7, 2012. Customers must upgrade to
the new version.
Workaround(s):
Do not support the upload or display of user-supplied .png files in your
applications.
Mitigation(s):
None.
REFERENCES:
* Complete CVSS Guide
* On-line Calculator V2
* CVE-2011-2036
* X-Force Vulnerability Database
RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
CHANGE HISTORY:
17 January 2013: Original copy published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Flash.
Note: According to the Forum of Incident Response and Security Teams (FIRST),
the Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF
ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
Copyright and trademark information
IBM, the IBM logo and ibm.com are trademarks of International Business Machines
Corp., registered in many jurisdictions worldwide. Other product and service
names might be trademarks of IBM or other companies. A current list of IBM
trademarks is available on the Web at "Copyright and trademark information" at
www.ibm.com/legal/copytrade.shtml.
- --------------------------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
===========================================================================
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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=XiAP
-----END PGP SIGNATURE-----