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TITLE:
IBM AIX xlock Buffer Overflow Vulnerability
SECUNIA ADVISORY ID:
SA22098
VERIFY ADVISORY:
http://secunia.com/advisories/22098/
CRITICAL:
Less critical
IMPACT:
Privilege escalation
WHERE:
Local system
OPERATING SYSTEM:
AIX 5.x
http://secunia.com/product/213/
DESCRIPTION:
A vulnerability has been reported in IBM AIX, which can be exploited
by malicious, local users to gain escalated privileges.
The vulnerability is due to a unspecified boundary error in xlock.
This can be exploited to cause a buffer overflow and allows arbitrary
code execution with root privileges.
SOLUTION:
Apply Interim fixes until APARs are available.
Interim fix:
ftp://aix.software.ibm.com/aix/efixes/security/xlock_ifix.tar.Z
APAR for AIX 5.2.0:
Apply IY87943 (available).
APAR for AIX 5.3.0:
Apply IY87894 (available approx. 2006-10-04).
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
IBM:
http://www-1.ibm.com/support/docview.wss?uid=isg1IY87943
http://www-1.ibm.com/support/docview.wss?uid=isg1IY87894
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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
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