LibTIFF Buffer Overflow in ThunderCode Decoder Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1025257 |
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SecurityTracker URL: http://securitytracker.com/id/1025257
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CVE Reference:
CVE-2011-1167
(Links to External Site)
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Date: Mar 28 2011
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 3.9.4
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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.
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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.
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Solution:
The vendor has issued a source code fix.
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Vendor URL: remotesensing.org/libtiff/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Mon, 21 Mar 2011 21:37:13 +0000
Subject: ZDI-11-107: Libtiff ThunderCode Decoder THUNDER_2BITDELTAS Remote Code Execution Vulnerability
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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:
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