xar Malformed xar Archive Extraction Heap Buffer Overflow Vulnerability

Bugtraq ID:	44828
Class:	Boundary Condition Error
CVE:	CVE-2010-3798
Remote:	Yes
Local:	No
Published:	Nov 10 2010 12:00AM
Updated:	Nov 10 2010 12:00AM
Credit:	Apple
Vulnerable:	xar xar 1.5.3 xar xar 1.5.2 Apple Mac OS X Server 10.6.4 Apple Mac OS X Server 10.6.3 Apple Mac OS X Server 10.6.2 Apple Mac OS X Server 10.6.1 Apple Mac OS X Server 10.6 Apple Mac OS X 10.6.4 Apple Mac OS X 10.6.3 Apple Mac OS X 10.6.2 Apple Mac OS X 10.6.1 Apple Mac OS X 10.6
Not Vulnerable:	Apple Mac OS X Server 10.6.5 Apple Mac OS X 10.6.5

xar Malformed xar Archive Extraction Heap Buffer Overflow Vulnerability

xar is prone to a buffer-overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied data.

An attacker can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely result in denial-of-service conditions.

NOTE: This issue was previously covered in BID 44778 (Apple Mac OS X Prior to 10.6.5 Multiple Security Vulnerabilities), but has been given its own record to better document it.

xar Malformed xar Archive Extraction Heap Buffer Overflow Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

• /data/vulnerabilities/exploits/42498.py

xar Malformed xar Archive Extraction Heap Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references for more information.


Apple Mac OS X 10.6

• Apple MacOSXUpdCombo10.6.5.dmg
  For Mac OS X v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6

• Apple MacOSXServUpdCombo10.6.5.dmg
  For Mac OS X Server v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.1

• Apple MacOSXServUpdCombo10.6.5.dmg
  For Mac OS X Server v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.1

• Apple MacOSXUpdCombo10.6.5.dmg
  For Mac OS X v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.2

• Apple MacOSXUpdCombo10.6.5.dmg
  For Mac OS X v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.2

• Apple MacOSXServUpdCombo10.6.5.dmg
  For Mac OS X Server v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.3

• Apple MacOSXServUpdCombo10.6.5.dmg
  For Mac OS X Server v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.3

• Apple MacOSXUpdCombo10.6.5.dmg
  For Mac OS X v10.6 - v10.6.3
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.4

• Apple MacOSXServerUpd10.6.5.dmg
  For Mac OS X Server v10.6.4
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.4

• Apple MacOSXUpd10.6.5.dmg
  For Mac OS X v10.6.4
  http://www.apple.com/support/downloads/

xar Malformed xar Archive Extraction Heap Buffer Overflow Vulnerability

References:

• xar Homepage (xar)