TITLE:
Fujitsu NetShelter/FW DNS Handling Denial of Service

SECUNIA ADVISORY ID:
SA19894

VERIFY ADVISORY:
http://secunia.com/advisories/19894/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Fujitsu NetShelter/FW Series
http://secunia.com/product/9695/

DESCRIPTION:
A vulnerability has been reported in Fujitsu NetShelter/FW, which can
be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an unspecified error in the web
cache and web proxy functionality when handling certain DNS packets.
This can be exploited to cause the device to stop responding to
requests.

The vulnerability has been reported in the following products:
* NetShelter/FW (E11Lxx and E12Lxx firmware versions)
* NetShelter/FW-P (all versions)
* NetShelter/FW-L (all versions)
* NetShelter/FW-M (all versions)

SOLUTION:
Apply firmware updates.

Contact the vendor to obtain the updated firmware.

NetShelter/FW:
Update to firmware version E11L27 or E12L31.

NetShelter/FW-P:
Update to firmware version E10L29 or E11L41.

NetShelter/FW-L:
Update to firmware version E10L31.

NetShelter/FW-M:
Update to firmware version E10L31.

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor based on DNS Test Tool created by Oulu University
Secure Programming Group.

ORIGINAL ADVISORY:
http://software.fujitsu.com/jp/security/vulnerabilities/niscc144154.html
http://fenics.fujitsu.com/products/support/2006/dns_netshelter.html

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