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Category:   Application (Generic)  >   LibTIFF Vendors:   libtiff.org
LibTIFF Buffer Overflow in ThunderCode Decoder Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1025257
SecurityTracker URL:  http://securitytracker.com/id/1025257
CVE Reference:   CVE-2011-1167   (Links to External Site)
Date:  Mar 28 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.9.4
Description:   A vulnerability was reported in LibTIFF. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted image file that, when loaded by the target user or application, will trigger a heap overflow in the ThunderCode decoder and execute arbitrary code on the target system. The code will run with the privileges of the target user or application.

The vendor was notified on January 21, 2011.

Martin Barbella reported this vulnerability via TippingPoint's Zero Day Initiative.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a source code fix.
Vendor URL:  remotesensing.org/libtiff/ (Links to External Site)
Cause:   Boundary error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 28 2011 (Red Hat Issues Fix) LibTIFF Buffer Overflow in ThunderCode Decoder Lets Remote Users Execute Arbitrary Code   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 4, 5, and 6.
Aug 10 2011 (RIM Issues Fix for BlackBerry Enterprise Server) LibTIFF Buffer Overflow in ThunderCode Decoder Lets Remote Users Execute Arbitrary Code
RIM has issued a fix for BlackBerry Enterprise Server.



 Source Message Contents

Date:  Mon, 21 Mar 2011 21:37:13 +0000
Subject:  ZDI-11-107: Libtiff ThunderCode Decoder THUNDER_2BITDELTAS Remote Code Execution Vulnerability

ZDI-11-107: Libtiff ThunderCode Decoder THUNDER_2BITDELTAS Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-107

March 21, 2011

-- CVE ID:
CVE-2011-1167 

-- CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

-- Affected Vendors:
Libtiff

-- Affected Products:
Libtiff libtiff

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10729. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of libtiff. User interaction is required to
exploit this vulnerability in that the target must visit a malicious
page or open a malicious file.

The specific flaw exists within the implementation of the ThunderDecode
codec. While decoding a particular code within a row, the decoder will
fail to accommodate for the total expanded size of the row. This can
cause a heap-based buffer overflow which can lead to code execution
under the context of the application utilizing the library.

-- Vendor Response:
Libtiff has issued an update to correct this vulnerability. More
details can be found at:

http://bugzilla.maptools.org/show_bug.cgi?id=2300

-- Disclosure Timeline:
2011-01-21 - Vulnerability reported to vendor
2011-03-21 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Martin Barbella

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi
 
 


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