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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.2348
   Microsoft Security Bulletin MS15-098 - Critical - Vulnerabilities in
             Windows Journal Could Allow Remote Code Execution
                             9 September 2015

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-2530 CVE-2015-2519 CVE-2015-2516
                   CVE-2015-2514 CVE-2015-2513 

Original Bulletin: 
   https://technet.microsoft.com/en-us/library/security/MS15-098

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Microsoft Security Bulletin MS15-098: Vulnerabilities in Windows Journal Could
Allow Remote Code Execution (3089669)

Bulletin Number: MS15-098

Bulletin Title: Vulnerabilities in Windows Journal Could Allow Remote Code 
Execution

Severity: Critical

KB Article: 3089669

Version: 1.0

Published Date: September 8, 2015

Executive Summary

This security update resolves vulnerabilities in Microsoft Windows. The more 
severe of the vulnerabilities could allow remote code execution if a user 
opens a specially crafted Journal file. Users whose accounts are configured to
have fewer user rights on the system could be less impacted than users who 
operate with administrative user rights.

This security update is rated Critical for all supported releases of Windows 
excluding Itanium editions, which are not affected. For more information, see
the Affected Software section.

Affected Software

Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2

Windows Server 2008 for 32-bit Systems Service Pack 2

Windows Server 2008 for x64-based Systems Service Pack 2

Windows 7 for 32-bit Systems Service Pack 1

Windows 7 for x64-based Systems Service Pack 1

Windows Server 2008 R2 for x64-based Systems Service Pack 1

Windows 8 for 32-bit Systems

Windows 8 for x64-based Systems

Windows 8.1 for 32-bit Systems

Windows 8.1 for x64-based Systems

Windows Server 2012

Windows Server 2012 R2

Windows RT[1]

Windows RT 8.1[1]

Windows 10 for 32-bit Systems[2]

Windows 10 for x64-based Systems[2]

Vulnerability Information

Multiple Windows Journal RCE Vulnerabilities

Remote code execution vulnerabilities exist in Microsoft Windows when a 
specially crafted Journal file is opened in Windows Journal. An attacker who 
successfully exploited the vulnerabilities could cause arbitrary code to 
execute in the context of the current user. If a user is logged on with 
administrative user rights, an attacker could take control of the affected 
system. An attacker could then install programs; view, change, or delete data;
or create new accounts with full user rights. Users whose accounts are 
configured to have fewer user rights on the system could be less impacted than
users who operate with administrative user rights.

For an attack to be successful, the vulnerabilities require that a user open a
specially crafted Journal file with an affected version of Windows Journal. In
an email attack scenario, an attacker could exploit the vulnerabilities by 
sending a specially crafted Journal file to the user and by convincing the 
user to open the file. The update addresses the vulnerabilities by modifying 
how Windows Journal parses Journal files.

The update addresses the vulnerabilities by modifying how Internet Explorer 
handles objects in memory. The following table contains links to the standard
entry for each vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title 			CVE number 	Publicly disclosed 	Exploited

Windows Journal RCE Vulnerability 	CVE-2015-2513 	No 			No

Windows Journal RCE Vulnerability 	CVE-2015-2514	No 			No

Windows Journal Integer Overflow  	CVE-2015-2519	No 			No
 RCE Vulnerability

Windows Journal RCE Vulnerability 	CVE-2015-2530	No 			No

Windows Journal DoS Vulnerability - CVE-2015-2516

A denial of service vulnerability exists in Windows Journal when a specially 
crafted Journal file is opened in Windows Journal. An attacker who 
successfully exploited this vulnerability could cause data loss on the target
system. Note that the denial of service would not allow an attacker to execute
code or to elevate their user rights.

For an attack to be successful, a user must open a specially crafted Journal 
file with an affected version of Windows Journal. In an email attack scenario,
an attacker could exploit the vulnerability by sending a specially crafted 
Journal file to the user and by convincing the user to open the file. The 
update addresses the vulnerability by correcting how Windows Journal manages 
objects in memory.

Microsoft received information about this vulnerability through coordinated 
vulnerability disclosure. When this security bulletin was issued, Microsoft 
had not received any information to indicate that this vulnerability had been
publicly used to attack customers.

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