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ISC BIND "query_addsoa" Denial of Service
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Secunia Advisory:
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SA25070
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Release Date:
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2007-05-01
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Last Update:
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2007-05-04
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Popularity:
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8,287 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | ISC BIND 9.4.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2007-2241
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Description:
A vulnerability has been reported in BIND, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error when invoking the "query_addsoa()" function. This can be exploited to cause the nameserver to exit by sending a specially crafted sequence of queries.
Successful exploitation requires that "recursion" is enabled.
The vulnerability is reported in BIND version 9.4.0, and BIND versions 9.5.0a1, 9.5.0a2, and 9.5.0a3.
Solution:
Update to BIND 9.4.1.
ftp://ftp.isc.org/isc/bind9/9.4.1/bind-9.4.1.tar.gz
Windows 2000, Windows XP, and Window 2003 binary kits:
ftp://ftp.isc.org/isc/bind9/9.4.1/BIND9.4.1.zip
ftp://ftp.isc.org/isc/bind9/9.4.1/BIND9.4.1.debug.zip
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2007-05-04: Added link to US-CERT.
Original Advisory:
http://www.isc.org/sw/bind/bind-security.php
Other References:
US-CERT VU#718460:
http://www.kb.cert.org/vuls/id/718460
Extended Solution:
The "Extended Solution" section is available for Secunia customers only. Request a trial and get access to the Secunia Customer Area and Extended Secunia advisories.
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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