[OpenPKG-SA-2006.019] OpenPKG Security Advisory (bind)
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OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security/ http://www.openpkg.org
openpkg-security@xxxxxxxxxxx openpkg@xxxxxxxxxxx
OpenPKG-SA-2006.019 07-Sep-2006
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Package: bind
Vulnerability: denial of service
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= bind-9.3.2-20060825 >= bind-9.3.2-20060907
OpenPKG 2-STABLE <= bind-9.3.2-2.20060622 >= bind-9.3.2-2.20060907
OpenPKG 2.5-RELEASE <= bind-9.3.1-2.5.0 >= bind-9.3.1-2.5.1
Description:
Two vulnerabilities were discovered in the DNS server BIND [0]:
1. SIG Query Processing [1][2][3]: On recursive servers queries
for SIG records will trigger a assertion failure if more than one
SIG (covered) RR set is returned. On authoritative servers, if a
nameserver is serving a RFC 2535 DNSSEC zone and is queried for the
SIG records where multiple SIG (covered) RRsets (e.g. a zone apex)
exist, then BIND will trigger a assertion failure when it trys to
construct the response. The Common Vulnerabilities and Exposures (CVE)
project assigned the id CVE-2006-4095 [4] to the problem.
2. Excessive Recursive Queries INSIST failure [1][2][5]: It is
possible to trigger an INSIST failure by sending enough recursive
queries that the response to the query arrives after all the
clients looking for the response have left the recursion queue. The
Common Vulnerabilities and Exposures (CVE) project assigned the id
CVE-2006-4096 [6] to the problem.
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References:
[0] http://www.isc.org/sw/bind/
[1] http://www.isc.org/sw/bind/bind9.3.php#security
[2] http://www.niscc.gov.uk/niscc/docs/re-20060905-00590.pdf?lang=en
[3] http://www.kb.cert.org/vuls/id/915404
[4] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4095
[5] http://www.kb.cert.org/vuls/id/697164
[6] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4096
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