Vulnerability Alert

Oracle Java CFF-Based OpenType Fonts Handling Remote Code Execution Vulnerability

 
Threat Type:CWE-119: Buffer Errors
IntelliShield ID:29302
Version:4
First Published:2013 May 14 13:13 GMT
Last Published:2013 August 21 15:15 GMT
Port: Not available
CVE:CVE-2013-1491
BugTraq ID:58493
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:9.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:6.9
 
Version Summary:HP has released an additional security bulletin and updated software to address the Oracle Java CFF-based OpenType fonts handling remote code execution vulnerability.
 
 
Description
A vulnerability in the 2D subcomponent of Java Runtime Environment (JRE) could allow an unauthenticated, remote attacker to execute arbitrary code on a system.

The vulnerability is due to improper handling of certain web pages or files by the affected software. An attacker could exploit this vulnerability by convincing a user to open a malicious font file or visit a malicious web page. If successful, it could allow the attacker to execute arbitrary code on the targeted system.

Oracle has confirmed the vulnerability and released software updates.
 
Warning Indicators
The following Oracle products are vulnerable:
  • JRE 7 Update 17 and prior
  • JRE 6 Update 43 and prior
  • JRE 5.0 Update 41 and prior
  • JavaFX versions 2.2.7 and prior
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

Exploitation of this vulnerability was demonstrated during the Pwn2Own competition at CanSecWest 2013; however, the exploit is not publicly available.
 
Vendor Announcements
Oracle has released a security advisory at the following link: Oracle Java SE Critical Patch Update Advisory - April 2013

HP has released security bulletins c03809278 and c03898880 at the following links: HPSBUX02889 SSRT101252 and HPSBUX02922 SSRT101305

Red Hat has released an official CVE statement and security advisories for bug 920248 at the following links: CVE-2013-1491, RHSA-2013:0757, RHSA-2013:0758, RHSA-2013-0855, =RHSA-2013-0823, and RHSA-2013-0822
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on a targeted system under the context of the current process. A successful exploit could result in a complete compromise of the system.
 
Technical Information
The vulnerability is due to improper handling of certain Compact Font Format (CFF) based OpenType fonts by the affected software. When processed, the two unspecified operators may perform insufficient bounds checks on user-supplied elements.

An unauthenticated, remote attacker could exploit this vulnerability by persuading a user to visit a malicious website. Processing the data could allow the attacker to read and write elements beyond the allocated buffers, leading to a memory corruption. The attacker could use this condition to execute arbitrary code on a targeted system under the context of the current process.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Users should verify that unsolicited links are safe to follow.

Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.

Administrators are advised to monitor affected systems.
 
Patches/Software
Oracle has released patches for registered users at the following link: Oracle

HP has released updated software at the following links: Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
 
Alert History
 

Version 3, July 2, 2013, 5:57 PM: HP has released a security bulletin and updated software to address the Oracle Java CFF-based OpenType fonts handling remote code execution vulnerability.

Version 2, May 23, 2013, 7:15 PM: Red Hat has released additional security advisories and updated packages to address the Oracle Java CFF-based OpenType fonts handling remote code execution vulnerability.

Version 1, May 14, 2013, 1:13 PM: Oracle Java contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are available.



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Sun Microsystems, Inc.JavaFX 2.2 Base, .1, .2, .3, .4, .5, .6, .7
Sun Microsystems, Inc.Java Runtime Environment (JRE) 5.0.0 Base, Update 1, Update 2, Update 3, Update 4, Update 5, Update 6, Update 7, Update 8, Update 9, Update 10, Update 11, Update 12, Update 13, Update 14, Update 15, Update 16, Update 17, Update 18, Update 19, Update 20, Update 21, Update 22, Update 23, Update 24, Update 25, Update 26, Update 27, Update 28, Update 29, Update 30, Update 31, Update 32, Update 33, Update 34, Update 35, Update 36, Update 37, Update 38, Update 39, Update 40, Update 41 | 6.0 Base, Update 1, Update 2, Update 3, Update 4, Update 5, Update 6, Update 7, Update 10, Update 11, Update 12, Update 13, Update 14, Update 15, Update 16, Update 17, Update 18, Update 19, Update 20, Update 21, Update 22, Update 23, Update 24, Update 25, Update 26, Update 27, Update 28, Update 29, Update 30, Update 31, Update 32, Update 33, Update 34, Update 35, .36, .37, .38, Update 39, Update 40, Update 41, Update 42, Update 43 | 7.0 Base, Update 1, Update 2, Update 3, Update 4, Update 5, Update 6, Update 7, Update 8, Update 9, Update 10, Update 11, Update 12, Update 13, Update 14, Update 15, Update 16, Update 17

Associated Products:
HPHP Java Development Kit (JDK) 6.0 .00, .01, .02, .03, .04, .05, .06, .07, .08, .09, .10, .11, .12, .13, .14, .15, .16, .17, .18
HPHP Java Runtime Environment (JRE) 6.0 .00, .01, .02, .03, .04, .05, .06, .07, .08, .09, .10, .11, .12, .13, .14, .15, .16, .17, .18
HPHP-UX 11.11/11i Base | 11.23 Base | 11.31 Base
Red Hat, Inc.Red Hat Enterprise Linux Desktop Supplementary 5.0 IA-32, x86-64 | 6 IA-32, x86_64
Red Hat, Inc.Red Hat Enterprise Linux HPC Node Supplementary 6 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server Supplementary 6 IA-32, PPC, PPC 64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server Supplementary AUS 6.4 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server Supplementary EUS 6.4.z IA-32, ppc, ppc64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Workstation Supplementary 6 IA-32, x86_64
Red Hat, Inc.RHEL Supplementary 5 IA-32, PPC64, S390, S390x, x86_64
Red Hat, Inc.RHEL Supplementary EUS 5.9.z IA-32, x86_64, ppc, ppc64, s390, s390x
Red Hat, Inc.RHEL Supplementary Long Life 5.9 IA-32, x86_64




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