Executive Summary

Summary
Title FreeType 2 CFF font stack corruption vulnerability
Informations
Name VU#275247 First vendor Publication 2010-08-05
Vendor VU-CERT Last vendor Modification 2010-09-14
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Vulnerability Note VU#275247

FreeType 2 CFF font stack corruption vulnerability

Overview

FreeType 2 contains a vulnerability in the processing of CFF fonts, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

FreeType is a font engine that can open and process font files. FreeType 2 includes the ability to handle a number of font types, including Compact Font Format (CFF). FreeType is used by a number of applications, including PDF readers, web browsers, and other applications. FreeType 2 contains a flaw in the handling of some CFF opcodes, which can result in stack corruption. This can allow arbitrary code execution.

This vulnerability is being used in the iPhone PDF JailBreak exploit.

II. Impact

By causing an application that uses FreeType to parse a specially-crafted CFF font, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. This can occur as the result of opening a PDF document or viewing a web page.

III. Solution

Apply an update

This vulnerability is fixed in the FreeType source tree. Please check with your vendor for an update.

Vendor Information

VendorStatusDate NotifiedDate Updated
Apple Inc.Affected2010-08-042010-08-11
Conectiva Inc.Unknown2010-08-102010-08-10
Cray Inc.Unknown2010-08-102010-08-10
Debian GNU/LinuxAffected2010-08-102010-08-11
DragonFly BSD ProjectUnknown2010-08-102010-08-10
EMC CorporationUnknown2010-08-102010-08-10
Engarde Secure LinuxUnknown2010-08-102010-08-10
F5 Networks, Inc.Affected2010-08-102010-08-11
Fedora ProjectUnknown2010-08-102010-08-10
Foxit Software CompanyAffected2010-08-062010-08-06
FreeBSD ProjectUnknown2010-08-102010-08-10
FujitsuUnknown2010-08-102010-08-10
Gentoo LinuxAffected2010-08-102010-08-11
GoogleNot Affected2010-09-102010-09-14
Hewlett-Packard CompanyUnknown2010-08-102010-08-10
HitachiUnknown2010-08-102010-08-10
IBM CorporationUnknown2010-08-102010-08-10
IBM Corporation (zseries)Unknown2010-08-102010-08-10
IBM eServerUnknown2010-08-102010-08-10
InfobloxUnknown2010-08-102010-08-10
Juniper Networks, Inc.Not Affected2010-08-102010-08-23
Mandriva S. A.Unknown2010-08-102010-08-10
Microsoft CorporationUnknown2010-08-102010-08-10
MontaVista Software, Inc.Unknown2010-08-102010-08-10
NEC CorporationUnknown2010-08-102010-08-10
NetBSDUnknown2010-08-102010-08-10
NokiaUnknown2010-08-102010-08-10
Novell, Inc.Unknown2010-08-102010-08-10
Openwall GNU/*/LinuxNot Affected2010-08-102010-08-23
QNX Software Systems Inc.Unknown2010-08-102010-08-10
Red Hat, Inc.Affected2010-08-05
SafeNetUnknown2010-08-102010-08-10
Silicon Graphics, Inc.Unknown2010-08-102010-08-10
Slackware Linux Inc.Unknown2010-08-102010-08-10
Sony CorporationUnknown2010-08-102010-08-10
Sun Microsystems, Inc.Unknown2010-08-102010-08-10
SUSE LinuxAffected2010-08-102010-09-10
The SCO GroupUnknown2010-08-102010-08-10
TurbolinuxUnknown2010-08-102010-08-10
UbuntuUnknown2010-08-102010-08-10
UnisysUnknown2010-08-102010-08-10
Wind River Systems, Inc.Affected2010-08-102010-08-11

References

http://www.securityfocus.com/bid/42241
http://secunia.com/advisories/40816
http://securitytracker.com/alerts/2010/Aug/1024283.html
https://rhn.redhat.com/errata/RHSA-2010-0607.html
http://support.apple.com/kb/HT4291
http://support.apple.com/kb/HT4292
http://www.f-secure.com/weblog/archives/00002002.html
http://www.foxitsoftware.com/pdf/reader/security_bulletins.php#iphone

Credit

This vulnerability was discovered being exploited in the wild. Additional analysis was performed by Braden Thomas of Apple Product Security.

This document was written by Will Dormann.

Other Information

Date Public:2010-08-02
Date First Published:2010-08-05
Date Last Updated:2010-09-14
CERT Advisory: 
CVE-ID(s):CVE-2010-1797
NVD-ID(s):CVE-2010-1797
US-CERT Technical Alerts: 
Metric:13.39
Document Revision:29

Original Source

Url : http://www.kb.cert.org/vuls/id/275247

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21490
 
Oval ID: oval:org.mitre.oval:def:21490
Title: RHSA-2010:0607: freetype security update (Important)
Description: Multiple stack-based buffer overflows in the cff_decoder_parse_charstrings function in the CFF Type2 CharStrings interpreter in cff/cffgload.c in FreeType before 2.4.2, as used in Apple iOS before 4.0.2 on the iPhone and iPod touch and before 3.2.2 on the iPad, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted CFF opcodes in embedded fonts in a PDF document, as demonstrated by JailbreakMe. NOTE: some of these details are obtained from third party information.
Family: unix Class: patch
Reference(s): RHSA-2010:0607-02
CESA-2010:0607
CVE-2010-1797
 Version: 4
Platform(s): Red Hat Enterprise Linux 3
Red Hat Enterprise Linux 5
CentOS Linux 5
 Product(s): freetype
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22937
 
Oval ID: oval:org.mitre.oval:def:22937
Title: ELSA-2010:0607: freetype security update (Important)
Description: Multiple stack-based buffer overflows in the cff_decoder_parse_charstrings function in the CFF Type2 CharStrings interpreter in cff/cffgload.c in FreeType before 2.4.2, as used in Apple iOS before 4.0.2 on the iPhone and iPod touch and before 3.2.2 on the iPad, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted CFF opcodes in embedded fonts in a PDF document, as demonstrated by JailbreakMe. NOTE: some of these details are obtained from third party information.
Family: unix Class: patch
Reference(s): ELSA-2010:0607-02
CVE-2010-1797
 Version: 6
Platform(s): Oracle Linux 5
 Product(s): freetype
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 65

ExploitDB Exploits

id Description
2010-08-24 Foxit Reader <= 4.0 pdf Jailbreak Exploit

OpenVAS Exploits

Date Description
2012-02-12 Name : Gentoo Security Advisory GLSA 201201-09 (FreeType)
File : nvt/glsa_201201_09.nasl
2011-08-09 Name : CentOS Update for freetype CESA-2010:0607 centos5 i386
File : nvt/gb_CESA-2010_0607_freetype_centos5_i386.nasl
2010-11-23 Name : Fedora Update for freetype FEDORA-2010-17728
File : nvt/gb_fedora_2010_17728_freetype_fc13.nasl
2010-11-23 Name : Fedora Update for freetype FEDORA-2010-17755
File : nvt/gb_fedora_2010_17755_freetype_fc12.nasl
2010-11-16 Name : Fedora Update for freetype FEDORA-2010-15785
File : nvt/gb_fedora_2010_15785_freetype_fc12.nasl
2010-10-22 Name : Fedora Update for freetype FEDORA-2010-15705
File : nvt/gb_fedora_2010_15705_freetype_fc13.nasl
2010-10-19 Name : Mandriva Update for freetype2 MDVSA-2010:201 (freetype2)
File : nvt/gb_mandriva_MDVSA_2010_201.nasl
2010-08-20 Name : CentOS Update for freetype CESA-2010:0607 centos3 i386
File : nvt/gb_CESA-2010_0607_freetype_centos3_i386.nasl
2010-08-20 Name : Ubuntu Update for freetype vulnerabilities USN-972-1
File : nvt/gb_ubuntu_USN_972_1.nasl
2010-08-13 Name : Mandriva Update for freetype2 MDVSA-2010:149 (freetype2)
File : nvt/gb_mandriva_MDVSA_2010_149.nasl
2010-08-06 Name : RedHat Update for freetype RHSA-2010:0607-02
File : nvt/gb_RHSA-2010_0607-02_freetype.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
67011 FreeType2 Unspecified CFF Font Handling Arbitrary Code Execution

Snort® IPS/IDS

Date Description
2014-05-24 Foxit Reader CFF CharStrings buffer overflow attempt
RuleID : 30771 - Revision : 2 - Type : FILE-PDF
2014-05-24 Foxit Reader CFF CharStrings buffer overflow attempt
RuleID : 30770 - Revision : 2 - Type : FILE-PDF

Nessus® Vulnerability Scanner

Date Description
2014-11-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2010-0622.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_libfreetype6-100812.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2010-0607.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20100805_freetype_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2012-01-24 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201201-09.nasl - Type : ACT_GATHER_INFO
2010-12-02 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_freetype2-100812.nasl - Type : ACT_GATHER_INFO
2010-11-22 Name : The remote Fedora host is missing a security update.
File : fedora_2010-17728.nasl - Type : ACT_GATHER_INFO
2010-11-22 Name : The remote Fedora host is missing a security update.
File : fedora_2010-17755.nasl - Type : ACT_GATHER_INFO
2010-11-02 Name : The remote Fedora host is missing a security update.
File : fedora_2010-15785.nasl - Type : ACT_GATHER_INFO
2010-10-20 Name : The remote Fedora host is missing a security update.
File : fedora_2010-15705.nasl - Type : ACT_GATHER_INFO
2010-10-14 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-201.nasl - Type : ACT_GATHER_INFO
2010-10-11 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_freetype2-7121.nasl - Type : ACT_GATHER_INFO
2010-09-09 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2105.nasl - Type : ACT_GATHER_INFO
2010-08-27 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12630.nasl - Type : ACT_GATHER_INFO
2010-08-26 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_freetype2-100812.nasl - Type : ACT_GATHER_INFO
2010-08-26 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_freetype2-100812.nasl - Type : ACT_GATHER_INFO
2010-08-18 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-972-1.nasl - Type : ACT_GATHER_INFO
2010-08-13 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-149.nasl - Type : ACT_GATHER_INFO
2010-08-09 Name : A PDF viewer installed on the remote host is affected by a remote code execut...
File : foxit_reader_4_1_1_0805.nasl - Type : ACT_GATHER_INFO
2010-08-09 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2010-0607.nasl - Type : ACT_GATHER_INFO
2010-08-06 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2010-0607.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-02-17 12:07:41
  • Multiple Updates
2012-12-19 13:27:29
  • Multiple Updates