[OpenPKG-SA-2006.029] OpenPKG Security Advisory (bind)

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OpenPKG Security Advisory OpenPKG GmbH
http://openpkg.org/security/ http://openpkg.com
OpenPKG-SA-2006.029 2006-11-04

Package: bind
Vulnerability: signature verification failure
OpenPKG Specific: no

Affected Series: Affected Packages: Corrected Packages:
E1.0-SOLID <= bind-9.3.2-E1.0.0 >= bind-9.3.2-E1.0.1
2-STABLE-20061018 <= bind-9.3.2-2.20061018 >= bind-9.3.2p2-2.20061104
2-STABLE <= bind-9.3.2-2.20061018 >= bind-9.3.2p2-2.20061104
CURRENT <= bind-9.3.2-20061013 >= bind-9.3.2p2-20061104

Description:
According to a vendor security advisory [0], the DNS server BIND [1]
(versions up to and including 9.3.2-P1) is vulnerable to the recently
discovered OpenSSL RSA signature verification problem for which the
Common Vulnerabilities and Exposures (CVE) project assigned the id
CVE-2006-4339 [2].

BIND uses RSA cryptography as part of its DNSSEC implementation. To
resolve the security issue, upgrade to the corrected OpenPKG packages
and for both your KEY and DNSKEY resource record types, generate new
RSASHA1 and RSAMD5 keys using the "-e" option to dnssec-keygen(8) if
the current keys were generated using the default exponent of 3. You
can determine if your keys are vulnerable by looking at the algorithm
(1 or 5) and the first three characters of the Base64 encoded RSA key.
RSASHA1 (5) and RSAMD5 (1) keys that start with "AQM", "AQN", "AQO" or
"AQP" are vulnerable.

References:
[0] http://marc.theaimsgroup.com/?l=bind-announce&amp;m=116253119512445
[1] http://www.isc.org/sw/bind/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4339

For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <[email protected]>" (ID 63C4CB9F) which
you can retrieve from http://openpkg.org/openpkg.org.pgp. Follow the
instructions on http://openpkg.org/security/signatures/ for details on
how to verify the integrity of this advisory.

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