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2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

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TITLE:
Grandstream HandyTone HT488 Multiple Denial of Service

SECUNIA ADVISORY ID:
SA27401

VERIFY ADVISORY:
http://secunia.com/advisories/27401/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Grandstream HandyTone HT488
http://secunia.com/product/16318/

DESCRIPTION:
Sipera VIPER Lab has reported some vulnerabilities in Grandstream
HandyTone HT488, which can be exploited by malicious people to cause
a DoS (Denial of Service).

1) A boundary error exists within the processing of SIP messages.
This can be exploited to cause a buffer overflow by sending a
specially crafted SIP INVITE message. 

2) An error within the IP stack implementation can be exploited to
crash an affected device by sending a large number of fragmented IP
packets to port 5060.

SOLUTION:
Use the device in a trusted network environment only.

PROVIDED AND/OR DISCOVERED BY:
Sipera VIPER Lab

ORIGINAL ADVISORY:
1)
http://www.sipera.com/index.php?action=resources,threat_advisory&tid=361
2)
http://www.sipera.com/index.php?action=resources,threat_advisory&tid=362

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About:
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