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Category:   OS (UNIX)  >   IBM AIX Vendors:   IBM
IBM AIX TCP Large Send Offload Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1026640
SecurityTracker URL:  http://securitytracker.com/id/1026640
CVE Reference:   CVE-2012-0194   (Links to External Site)
Date:  Feb 4 2012
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.3, 6.1, 7.1
Description:   A vulnerability was reported in IBM AIX. A remote user can cause denial of service conditions.

A remote user can send a series of specially crafted TCP packets to trigger a kernel panic on the target system.

Systems with the TCP large send offload option enabled on a network interface are affected.

Impact:   A remote user can cause the target system to crash.
Solution:   The vendor has issued a fix (APARs IV13827, IV13751, IV13820, IV14209, IV14210, IV14211).

The vendor's advisory is available at:

http://aix.software.ibm.com/aix/efixes/security/large_send_advisory.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/large_send_advisory.asc (Links to External Site)
Cause:   State error

Message History:   None.


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