Bug 254134 – net-dns/bind <9.4.3_p1 incorrect checks for malformed DSA signatures (CVE-2009-0025)

• Status: RESOLVED FIXED
• Product: Gentoo Security

[Description Robert Buchholz (RETIRED) 2009-01-07 18:34:17 UTC]

BIND uses the OpenSSL DSA_verify function and incorrectly checks the return code,
code, refer to bug 251346 for details.

[Comment 1 Robert Buchholz (RETIRED) 2009-01-07 18:40:04 UTC]

According to oCERT, this was fixed in 9.3.6-P1, 9.4.3-P1, 9.5.1-P1, 9.6.0-P1. Can't connect to isc.org to check though.

[Comment 2 Tobias Scherbaum (RETIRED) 2009-01-07 18:46:44 UTC]

(In reply to comment #1)
> According to oCERT, this was fixed in 9.3.6-P1, 9.4.3-P1, 9.5.1-P1, 9.6.0-P1.
> Can't connect to isc.org to check though.
> 

I'll quickly bump to 9.4.3_p1, 9.5.1_p1 and 9.6.0_p1 will follow.

from: ftp://ftp.isc.org/isc/bind9/9.4.3-P1/9.4.3-P1

		BIND 9.4.3-P1 is now available.

BIND 9.4.3-P1 is a SECURITY patch for BIND 9.4.3.  It addresses a bug
in which return values from some OpenSSL functions were left unchecked,
making it theoretically possible to spoof answers from some signed
zones.

	Bugs should be reported to [e-mail].

BIND 9.4.3-P1 can be downloaded from

	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/bind-9.4.3-P1.tar.gz

The PGP signature of the distribution is at

	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/bind-9.4.3-P1.tar.gz.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/bind-9.4.3-P1.tar.gz.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/bind-9.4.3-P1.tar.gz.sha512.asc

The signature was generated with the ISC public key, which is
available at <http://www.isc.org/ISC/isckey.txt>.

A binary kit for Windows XP and Window 2003 is at

	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.zip
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.debug.zip

The PGP signature of the binary kit for Windows XP and Window 2003 is at
	
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.zip.sha512.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.debug.zip.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.debug.zip.sha256.asc
	ftp://ftp.isc.org/isc/bind9/9.4.3-P1/BIND9.4.3-P1.debug.zip.sha512.asc

Changes since 9.4.3:

2522.	[security]	Handle -1 from DSA_do_verify().

2498.	[bug]		Removed a bogus function argument used with
			ISC_SOCKET_USE_POLLWATCH: it could cause compiler
			warning or crash named with the debug 1 level
			of logging. [RT #18917]

[Comment 3 Tobias Scherbaum (RETIRED) 2009-01-07 19:20:03 UTC]

9.4.3_p1 is inCVS.

Candidates for stabilization:
=net-dns/bind-9.4.3_p1
=net-dns/bind-tools-9.4.3_p1

[Comment 4 Guy Martin (RETIRED) 2009-01-08 15:48:36 UTC]

both stable on hppa

[Comment 5 Brent Baude (RETIRED) 2009-01-08 16:25:23 UTC]

ppc64 done

[Comment 6 Tobias Scherbaum (RETIRED) 2009-01-09 16:22:36 UTC]

ppc stable

[Comment 7 Tobias Klausmann (RETIRED) 2009-01-09 21:06:47 UTC]

Both stable on alpha.

[Comment 8 Markus Meier 2009-01-10 10:04:09 UTC]

amd64/x86 stable

[Comment 9 Raúl Porcel (RETIRED) 2009-01-10 16:52:11 UTC]

ia64/sparc stable

[Comment 10 Stefan Behte (RETIRED) 2009-01-10 18:17:59 UTC]

Ready to vote, I vote YES.

[Comment 11 Pierre-Yves Rofes (RETIRED) 2009-01-11 17:55:11 UTC]

voting yes too, request filed.

[Comment 12 Robert Buchholz (RETIRED) 2009-03-09 13:10:24 UTC]

GLSA 200903-14