IBM AIX dig Local Privilege Escalation Vulnerability

Bugtraq ID:	26262
Class:	Boundary Condition Error
CVE:	CVE-2007-4622
Remote:	No
Local:	Yes
Published:	Oct 30 2007 12:00AM
Updated:	Oct 31 2007 02:46PM
Credit:	The discoverer of this vulnerability wishes to remain anonymous.
Vulnerable:	IBM AIX 5.2
Not Vulnerable:

IBM AIX dig Local Privilege Escalation Vulnerability

IBM AIX is prone to a local privilege-escalation vulnerability because it fails to perform adequate boundary checks on user-supplied input.

Attackers can exploit this issue to execute arbitrary code using superuser privileges. Successful exploits will completely compromise affected computers.

IBM AIX dig Local Privilege Escalation Vulnerability

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

IBM AIX dig Local Privilege Escalation Vulnerability

Solution:
The vendor released an advisory and fixes to address this issue. Please see the references for more information.


IBM AIX 5.2

• IBM dig_ifix.tar
  ftp://aix.software.ibm.com/aix/efixes/security/dig_ifix.tar


• IBM IZ05017
  http://www.ibm.com/servers/eserver/support/unixservers/aixfixes.html

IBM AIX dig Local Privilege Escalation Vulnerability

References:

• AIX Homepage (IBM)
  
• iDefense Security Advisory 10.30.07: IBM AIX dig dns_name_fromtext Integer Under (iDefense Labs )
  
• IBM AIX dig dns_name_fromtext Integer Underflow Vulnerability (iDefense)