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Last updated: 7/1/2015 3:19:34 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-0226

Original release date: 07/19/2011
Last revised: 10/25/2011


Integer signedness error in psaux/t1decode.c in FreeType before 2.4.6, as used in CoreGraphics in Apple iOS before 4.2.9 and 4.3.x before 4.3.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted Type 1 font in a PDF document, as exploited in the wild in July 2011.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: APPLE
Name: APPLE-SA-2011-07-15-2
Type: Advisory
External Source: MANDRIVA
Name: MDVSA-2011:120
External Source: CONFIRM
Name: http://support.apple.com/kb/HT4802
Type: Advisory
External Source: MLIST
Name: [freetype-devel] 20110708 Re: details on iPhone exploit caused by FreeType?
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5002
External Source: CONFIRM
Name: http://support.apple.com/kb/HT4803
Type: Advisory
External Source: APPLE
Name: APPLE-SA-2011-07-15-1
Type: Advisory
External Source: APPLE
Name: APPLE-SA-2011-10-12-3
External Source: MISC
Name: http://www.appleinsider.com/articles/11/07/06/hackers_release_new_browser_based_ios_jailbreak_based_on_pdf_exploit.html
External Source: REDHAT
Name: RHSA-2011:1085
External Source: DEBIAN
Name: DSA-2294
External Source: SUSE
Name: openSUSE-SU-2011:0852
External Source: MLIST
Name: [freetype-devel] 20110711 Re: details on iPhone exploit caused by FreeType?
External Source: MLIST
Name: [freetype-devel] 20110708 details on iPhone exploit caused by FreeType?
External Source: BID
Name: 48619
External Source: SUSE
Name: SUSE-SU-2011:0853
External Source: MLIST
Name: [freetype-devel] 20110711 Re: details on iPhone exploit caused by FreeType?
External Source: MLIST
Name: [freetype-devel] 20110709 Re: details on iPhone exploit caused by FreeType?

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:freetype:freetype:2.4.4
* cpe:/a:freetype:freetype:2.4.3
* cpe:/a:freetype:freetype:2.4.2
* cpe:/a:freetype:freetype:2.4.1
* cpe:/a:freetype:freetype:2.4.0
* cpe:/a:freetype:freetype:2.3.9
* cpe:/a:freetype:freetype:2.3.10
* cpe:/a:freetype:freetype:2.3.11
* cpe:/a:freetype:freetype:2.3.12
* cpe:/a:freetype:freetype:2.3.8
* cpe:/a:freetype:freetype:2.3.7
* cpe:/a:freetype:freetype:2.3.6
* cpe:/a:freetype:freetype:2.3.5
* cpe:/a:freetype:freetype:2.3.4
* cpe:/a:freetype:freetype:2.3.3
* cpe:/a:freetype:freetype:2.3.2
* cpe:/a:freetype:freetype:2.3.1
* cpe:/a:freetype:freetype:2.3.0
* cpe:/a:freetype:freetype:2.2.1
* cpe:/a:freetype:freetype:2.2.10
* cpe:/a:freetype:freetype:2.4.5 and previous versions
+ OR
* cpe:/o:apple:iphone_os:4.2.1
* cpe:/o:apple:iphone_os:4.2.5
* cpe:/o:apple:iphone_os:4.2.8 and previous versions
* cpe:/o:apple:iphone_os:4.1
* cpe:/o:apple:iphone_os:4.0
* cpe:/o:apple:iphone_os:4.0.1
* cpe:/o:apple:iphone_os:4.0.2
* cpe:/o:apple:iphone_os:4.2
* cpe:/o:apple:iphone_os:4.3.0
* cpe:/o:apple:iphone_os:4.3.1
* cpe:/o:apple:iphone_os:4.3.2
* cpe:/o:apple:iphone_os:4.3.3
* cpe:/o:apple:iphone_os:3.2.2
* cpe:/o:apple:iphone_os:3.2.1
* cpe:/o:apple:iphone_os:3.2
* cpe:/o:apple:iphone_os:3.1.3
* cpe:/o:apple:iphone_os:3.1.2
* cpe:/o:apple:iphone_os:3.1
* cpe:/o:apple:iphone_os:3.0.1
* cpe:/o:apple:iphone_os:3.0
* cpe:/o:apple:iphone_os:2.2.1
* cpe:/o:apple:iphone_os:2.2
* cpe:/o:apple:iphone_os:2.1.1
* cpe:/o:apple:iphone_os:2.1
* cpe:/o:apple:iphone_os:2.0.2
* cpe:/o:apple:iphone_os:2.0.1
* cpe:/o:apple:iphone_os:2.0.0
* cpe:/o:apple:iphone_os:2.0
* cpe:/o:apple:iphone_os:1.1.5
* cpe:/o:apple:iphone_os:1.1.4
* cpe:/o:apple:iphone_os:1.1.3
* cpe:/o:apple:iphone_os:1.1.2
* cpe:/o:apple:iphone_os:1.1.1
* cpe:/o:apple:iphone_os:1.1.0
* cpe:/o:apple:iphone_os:1.0.2
* cpe:/o:apple:iphone_os:1.0.1
* cpe:/o:apple:iphone_os:1.0.0

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)