Apple iOS up to 5.1.1 ImageIO TIFF Image memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.7$5k-$25k0.00

A vulnerability, which was classified as critical, has been found in Apple iOS up to 5.1.1 (Smartphone Operating System). Affected by this issue is an unknown part of the component ImageIO. The manipulation as part of a TIFF Image leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the thunder (aka ThunderScan) decoder in tif_thunder.c in LibTIFF 3.9.4 and earlier allows remote attackers to execute arbitrary code via crafted THUNDER_2BITDELTAS data in a .tiff file that has an unexpected BitsPerSample value.

The weakness was presented 09/19/2012 by Martin Barbella as APPLE-SA-2012-09-19-1 as confirmed posting (Website). The advisory is available at prod.lists.apple.com. This vulnerability is handled as CVE-2011-1167 since 03/03/2011. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/22/2018). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 68239 (Oracle Linux 4 / 5 / 6 : libtiff (ELSA-2011-0392)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120219 (Apple Mac OS X Lion v10.7.4 and Security Update 2012-002 Not Installed (APPLE-SA-2012-05-09-1)).

Upgrading to version 6.0 eliminates this vulnerability. The problem might be mitigated by replacing the product with Google Android as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10729.

The vulnerability is also documented in the databases at X-Force (66247) and Tenable (68239). See 4791, 5798, 5799 and 5800 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68239
Nessus Name: Oracle Linux 4 / 5 / 6 : libtiff (ELSA-2011-0392)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 69420
OpenVAS Name: Debian Security Advisory DSA 2210-1 (tiff)
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 6.0
Alternative: Google Android
TippingPoint: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

03/03/2011 🔍
03/21/2011 +18 days 🔍
03/23/2011 +2 days 🔍
03/28/2011 +4 days 🔍
03/28/2011 +0 days 🔍
03/29/2011 +1 days 🔍
09/19/2012 +540 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
09/24/2012 +3 days 🔍
07/12/2013 +291 days 🔍
01/28/2016 +930 days 🔍
07/22/2018 +906 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Martin Barbella
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1167 (🔍)
OVAL: 🔍

X-Force: 66247 - LibTiff ThunderCode Decoder buffer overflow, High Risk
SecurityTracker: 1025257
Vulnerability Center: 56250 - LibTIFF <=3.9.4 Remote Arbitrary Code Execution Vulnerability via Crafted THUNDER_2BITDELTAS Data, Medium
SecurityFocus: 46951 - libTIFF ThunderCode Decoder Heap Buffer Overflow Vulnerability
Secunia: 43900 - Red Hat update for libtiff, Moderately Critical
OSVDB: 71256 - LibTIFF Thunderscan Decoder Incorrect bitspersample Overflow
Vupen: ADV-2011-0795

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/21/2012 13:45
Updated: 07/22/2018 10:18
Changes: 09/21/2012 13:45 (101), 07/22/2018 10:18 (2)
Complete: 🔍

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