VDB-6330 · CVE-2012-1139 · BID 52318

Apple iOS up to 5.1.1 FreeType memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.8$5k-$25k0.00

A vulnerability, which was classified as critical, was found in Apple iOS up to 5.1.1 (Smartphone Operating System). Affected is some unknown functionality of the component FreeType. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, and availability. CVE summarizes:

Array index error in FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to cause a denial of service (invalid stack read operation and memory corruption) or possibly execute arbitrary code via crafted glyph data in a BDF font.

The weakness was published 09/19/2012 by Mateusz Jurczyk with Google Security Team as APPLE-SA-2012-09-19-1 as not defined posting (Website). The advisory is available at prod.lists.apple.com. This vulnerability is traded as CVE-2012-1139 since 02/14/2012. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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 05/01/2018). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 58665 (CentOS 5 / 6 : freetype (CESA-2012:0467)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165463 (SUSE Enterprise Linux Security Update for freetype2 (SUSE-SU-2012:0483-2)).

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.

The vulnerability is also documented in the vulnerability database at Tenable (58665). Similar entries are available at 6213, 6151, 6186 and 6134.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58665
Nessus Name: CentOS 5 / 6 : freetype (CESA-2012:0467)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 71269
OpenVAS Name: FreeBSD Ports: firefox
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 6.0
Alternative: Google Android

Timelineinfo

02/14/2012 🔍
03/06/2012 +21 days 🔍
04/11/2012 +36 days 🔍
04/19/2012 +8 days 🔍
04/25/2012 +6 days 🔍
09/19/2012 +147 days 🔍
09/19/2012 +0 days 🔍
09/21/2012 +1 days 🔍
05/01/2018 +2048 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: APPLE-SA-2012-09-19-1
Researcher: Mateusz Jurczyk
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-1139 (🔍)
OVAL: 🔍

SecurityTracker: 1026765
SecurityFocus: 52318 - FreeType Versions Prior to 2.4.9 Multiple Remote Vulnerabilities
Secunia: 48918 - SUSE update for freetype2, Moderately Critical

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

Entryinfo

Created: 09/21/2012 13:45
Updated: 05/01/2018 11:21
Changes: 09/21/2012 13:45 (72), 05/01/2018 11:21 (12)
Complete: 🔍

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