Apple iOS up to 5.1.1 ImageIO TIFF Image numeric error

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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 5.1.1. The impacted element is an unknown function of the component ImageIO. This manipulation as part of TIFF Image causes numeric error. This vulnerability appears as CVE-2012-1173. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 5.1.1 (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component ImageIO. The manipulation as part of a TIFF Image leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple integer overflows in tiff_getimage.c in LibTIFF 3.9.4 allow remote attackers to execute arbitrary code via a crafted tile size in a TIFF file, which is not properly handled by the (1) gtTileSeparate or (2) gtStripSeparate function, leading to a heap-based buffer overflow.

The weakness was presented 09/19/2012 by Alexander Gavrun as APPLE-SA-2012-09-19-1 as confirmed posting (Website) via ZDI (Zero Day Initiative). It is possible to read the advisory at prod.lists.apple.com. This vulnerability is known as CVE-2012-1173 since 02/14/2012. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 69672 (Amazon Linux AMI : libtiff (ALAS-2012-65)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166571 (SUSE Enterprise Linux Security update for libtiff (SUSE-SU-2013:1639-1)).

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 12462.

The vulnerability is also documented in the databases at X-Force (74656), Tenable (69672), SecurityFocus (BID 52891†), OSVDB (81025†) and Secunia (SA48684†). See VDB-5052, VDB-6213, VDB-6151 and VDB-6186 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69672
Nessus Name: Amazon Linux AMI : libtiff (ALAS-2012-65)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71251
OpenVAS Name: Debian Security Advisory DSA 2447-1 (tiff)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

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

Timelineinfo

02/14/2012 🔍
04/04/2012 +50 days 🔍
04/04/2012 +0 days 🔍
04/06/2012 +2 days 🔍
04/16/2012 +10 days 🔍
06/04/2012 +49 days 🔍
09/19/2012 +107 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
09/04/2013 +348 days 🔍
04/13/2021 +2778 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Alexander Gavrun
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-1173 (🔍)
GCVE (CVE): GCVE-0-2012-1173
GCVE (VulDB): GCVE-100-6343

OVAL: 🔍

X-Force: 74656 - LibTiff gtTileSeparate() buffer overflow, High Risk
SecurityFocus: 52891 - libTIFF CVE-2012-1173 Remote Code Execution Vulnerability
Secunia: 48684 - LibTIFF Integer Overflow and Type Casting Vulnerabilities, Highly Critical
OSVDB: 81025
SecurityTracker: 1026895 - LibTIFF Buffer Overflow in gtTileSeparate() Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 34871 - LibTIFF 3.9.5 and Earlier Integer Overflow Allows Remote Code Execution via a Crafted TIFF File, Medium

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

Entryinfo

Created: 09/21/2012 13:45
Updated: 04/13/2021 09:41
Changes: 09/21/2012 13:45 (93), 04/11/2017 10:42 (6), 04/13/2021 09:41 (2)
Complete: 🔍
Cache ID: 216:2BA:103

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