IBM AIX FC SCSI protocol driver denial of service

ibm-aix-fcscsi-dos (64817) The risk level is classified as MediumMedium Risk

Description:

IBM AIX is vulnerable to a denial of service, caused by an error in the FC SCSI protocol driver when deallocating a timer. A local attacker could exploit this vulnerability to cause the application to crash.

*CVSS:

Base Score: 2.1
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 1.6
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to IBM APAR IZ92478 for patch, upgrade or suggested workaround information. See References.

References:

  • IBM APAR IZ92478: FC SCSI PROTOCOL DRIVER CAUSES SYSTEM CRASH.
  • BID-45931: IBM AIX 'FC SCSI' Protocol Driver Denial of Service Vulnerability
  • CVE-2011-0637: The FC SCSI protocol driver in IBM AIX 6.1 does not verify that a timer is unused before deallocating this timer, which might allow attackers to cause a denial of service (system crash) via unspecified vectors.
  • OSVDB ID: 70519: IBM AIX FC SCSI Protocol Driver Timer Deallocation Local DoS
  • SA42962: IBM AIX FC SCSI Protocol Driver Denial of Service Vulnerability

Platforms Affected:

  • IBM AIX 6.1

Reported:

Jan 19, 2011

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