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Netsikker nu! 2008
 
IBM AIX Multiple Vulnerabilities
Secunia Advisory: SA30349
Release Date: 2008-05-22
Last Update: 2008-06-04
Popularity: 3,172 views

Critical:
Less critical
Impact: Privilege escalation
DoS
Where: Local system
Solution Status: Vendor Patch

OS:AIX 5.x
AIX 6.x

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CVE reference:CVE-2008-2513
CVE-2008-2514
CVE-2008-2515


Description:
Some vulnerabilities have been reported in IBM AIX, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges.

1) A boundary error within the AIX kernel can be exploited to cause a buffer overflow and execute arbitrary code with kernel privileges.

2) A boundary error within the setuid root errpt command can be exploited to cause a buffer overflow and execute arbitrary code with root privileges.

3) An error within the setuid root iostat command when handling certain environment variables can be exploited to execute arbitrary code with root privileges.

The vulnerabilities are reported in versions 5.2, 5.3, and 6.1.

Solution:
Apply fixes or APARs as soon as they become available.
http://aix.software.ibm.com/aix/efixes/security/unix_fix.tar
ftp://aix.software.ibm.com/aix/efixes/security/unix_fix.tar
http://aix.software.ibm.com/aix/efixes/security/errpt_fix.tar
ftp://aix.software.ibm.com/aix/efixes/security/errpt_fix.tar
http://aix.software.ibm.com/aix/efixes/security/iostat_fix.tar
ftp://aix.software.ibm.com/aix/efixes/security/iostat_fix.tar


-- APARs --

AIX 5.2.0:
IZ19911
IZ19905
IZ20635

AIX 5.3.0:
IZ22368 (available approximately 20/06/2008)
IZ22346 (available approximately 20/06/2008)
IZ22350 (available approximately 20/06/2008)

AIX 5.3.7:
IZ22369 (available approximately 20/06/2008)
IZ22347 (available approximately 20/06/2008)
IZ22351 (available approximately 20/06/2008)

AIX 5.3.8:
IZ21481 (available approximately 20/06/2008)
IZ21494 (available approximately 20/06/2008)
IZ21506 (available approximately 20/06/2008)

AIX 6.1.0:
IZ22370 (available approximately 20/06/2008)
IZ22348 (available approximately 20/06/2008)
IZ22349 (available approximately 20/06/2008)

Provided and/or discovered by:
Reported by the vendor.

Changelog:
2008-06-04: Added CVE reference.

Original Advisory:
http://aix.software.ibm.com/aix/efixes/security/unix_advisory.asc
http://aix.software.ibm.com/aix/efixes/security/errpt_advisory.asc
http://aix.software.ibm.com/aix/efixes/security/iostat_advisory.asc


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