Moderate: cyrus-sasl security and bug fix update

Advisory:	RHSA-2007:0795-4
Type:	Security Advisory
Severity:	Moderate
Issued on:	2007-09-04
Last updated on:	2007-09-04
Affected Products:	Red Hat Desktop (v. 4) Red Hat Enterprise Linux AS (v. 4) Red Hat Enterprise Linux ES (v. 4) Red Hat Enterprise Linux WS (v. 4)
OVAL:	N/A
CVEs (cve.mitre.org):	CVE-2006-1721

Details

An updated cyrus-sasl package that addresses a security issue and fixes
various other bugs is now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

The cyrus-sasl package contains the Cyrus implementation of SASL. SASL is
the Simple Authentication and Security Layer, a method for adding
authentication support to connection-based protocols.

A bug was found in cyrus-sasl's DIGEST-MD5 authentication mechanism. As
part of the DIGEST-MD5 authentication exchange, the client is expected to
send a specific set of information to the server. If one of these items
(the "realm") was not sent or was malformed, it was possible for a remote
unauthenticated attacker to cause a denial of service (segmentation fault)
on the server. (CVE-2006-1721)

This errata also fixes the following bugs:

* the Kerberos 5 library included in Red Hat Enterprise Linux 4 was not
thread safe. This update adds functionality which allows it to be used
safely in a threaded application.

* several memory leak bugs were fixed in cyrus-sasl's DIGEST-MD5
authentication plug-in.

* /dev/urandom is now used by default on systems which don't support
hwrandom. Previously, dev/random was the default.

* cyrus-sasl needs zlib-devel to build properly. This dependency
information is now included in the package.

Users are advised to upgrade to this updated cyrus-sasl package, which
resolves these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Updated packages

Red Hat Desktop (v. 4)

SRPMS:
cyrus-sasl-2.1.19-14.src.rpm	`4949e987f4a486518ed80c970bba211d`

IA-32:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-devel-2.1.19-14.i386.rpm	`7068dd09926d9ddc3b4307d19ee79082`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`

x86_64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.x86_64.rpm	`d1e5005820c522f8f847de220e85119e`
cyrus-sasl-devel-2.1.19-14.x86_64.rpm	`7a363042e12b94b32e74b9edf820e2cb`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.x86_64.rpm	`485846dfccf7ff8382b9285ce4c22802`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.x86_64.rpm	`74f41d53a2ba7a2d825eca4e68c5826a`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.x86_64.rpm	`21fffca415363bf3205a1acad5d7a707`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.x86_64.rpm	`c13b35aa40480e1615c1388c2cd42934`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.x86_64.rpm	`b2969d17575d799403a0a5afe586a4d3`

Red Hat Enterprise Linux AS (v. 4)

SRPMS:
cyrus-sasl-2.1.19-14.src.rpm	`4949e987f4a486518ed80c970bba211d`

IA-32:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-devel-2.1.19-14.i386.rpm	`7068dd09926d9ddc3b4307d19ee79082`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`

IA-64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.ia64.rpm	`d61ba4984d550098f90c81ebed27a84a`
cyrus-sasl-devel-2.1.19-14.ia64.rpm	`5a6e3fbb46fa1c46439f3f645e3a18c0`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.ia64.rpm	`f791bbff376bf7b9e347f1528b9326be`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.ia64.rpm	`9b54fa31b202d2436455fbb9a09423ea`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.ia64.rpm	`2e2d77ba2b34d1370209188b4cfc003c`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.ia64.rpm	`ca0d49a8813a480782107fc2df5fd30a`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.ia64.rpm	`f384677d9fd1c9474d75fc7fad3f725a`

PPC:
cyrus-sasl-2.1.19-14.ppc.rpm	`1bee1308d0f7df5f3def8aa5552e5f59`
cyrus-sasl-2.1.19-14.ppc64.rpm	`37f022c461682f2f856f73aadb8d1093`
cyrus-sasl-devel-2.1.19-14.ppc.rpm	`dd4402566019a237d8b921409a28f501`
cyrus-sasl-gssapi-2.1.19-14.ppc.rpm	`6a2c9da727c0a488345cf24f8a86c6c0`
cyrus-sasl-gssapi-2.1.19-14.ppc64.rpm	`bd4c5c43c185b954f5b41df65d557198`
cyrus-sasl-md5-2.1.19-14.ppc.rpm	`6a13d09d38cf4d851af050795216481f`
cyrus-sasl-md5-2.1.19-14.ppc64.rpm	`d4877c245e9bef3d88f3e45ce38332c6`
cyrus-sasl-ntlm-2.1.19-14.ppc.rpm	`ab2d30cffd6fd4e96926a6fcf53e4573`
cyrus-sasl-ntlm-2.1.19-14.ppc64.rpm	`e47fc3eae285aa44382096f97065b628`
cyrus-sasl-plain-2.1.19-14.ppc.rpm	`df264d66db2dacac26d24240c3362b49`
cyrus-sasl-plain-2.1.19-14.ppc64.rpm	`480a450422f946db4cc0925d466ef57f`
cyrus-sasl-sql-2.1.19-14.ppc.rpm	`1cac99f90c274ec28bd145abd7f9d9ba`
cyrus-sasl-sql-2.1.19-14.ppc64.rpm	`d55ea315de0d77d9e194ab63e2ecfb48`

s390:
cyrus-sasl-2.1.19-14.s390.rpm	`15533cdce06a7c5a1079a08a097a9a1c`
cyrus-sasl-devel-2.1.19-14.s390.rpm	`2bc24a9f498c860047bc2f4f8daf79fc`
cyrus-sasl-gssapi-2.1.19-14.s390.rpm	`38587346f7d8d8acfbabff1bb05f4c9f`
cyrus-sasl-md5-2.1.19-14.s390.rpm	`ee9069c61094193bda649718d8c77b28`
cyrus-sasl-ntlm-2.1.19-14.s390.rpm	`3ea060f95afd5cbce9ab882f27c57741`
cyrus-sasl-plain-2.1.19-14.s390.rpm	`05f3e1384bec859a0126206f3e6b13b4`
cyrus-sasl-sql-2.1.19-14.s390.rpm	`d1e711f5718ea68c87d99c0ffd3c0bec`

s390x:
cyrus-sasl-2.1.19-14.s390.rpm	`15533cdce06a7c5a1079a08a097a9a1c`
cyrus-sasl-2.1.19-14.s390x.rpm	`7db2a7b22a1e411ddfea522cc5d8c2ec`
cyrus-sasl-devel-2.1.19-14.s390x.rpm	`a9adead19ee9b315a850c2fa4f81f45f`
cyrus-sasl-gssapi-2.1.19-14.s390.rpm	`38587346f7d8d8acfbabff1bb05f4c9f`
cyrus-sasl-gssapi-2.1.19-14.s390x.rpm	`682070a715195d47eb7254fc336c4aed`
cyrus-sasl-md5-2.1.19-14.s390.rpm	`ee9069c61094193bda649718d8c77b28`
cyrus-sasl-md5-2.1.19-14.s390x.rpm	`e1138dad2af8a9ac592a86660c7570de`
cyrus-sasl-ntlm-2.1.19-14.s390.rpm	`3ea060f95afd5cbce9ab882f27c57741`
cyrus-sasl-ntlm-2.1.19-14.s390x.rpm	`331cc569dbed048896125cbd9b658afe`
cyrus-sasl-plain-2.1.19-14.s390.rpm	`05f3e1384bec859a0126206f3e6b13b4`
cyrus-sasl-plain-2.1.19-14.s390x.rpm	`6a6025226b1261491d91f64094d2bd2e`
cyrus-sasl-sql-2.1.19-14.s390.rpm	`d1e711f5718ea68c87d99c0ffd3c0bec`
cyrus-sasl-sql-2.1.19-14.s390x.rpm	`60e5ad162702acb8ed6a13dc601d1260`

x86_64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.x86_64.rpm	`d1e5005820c522f8f847de220e85119e`
cyrus-sasl-devel-2.1.19-14.x86_64.rpm	`7a363042e12b94b32e74b9edf820e2cb`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.x86_64.rpm	`485846dfccf7ff8382b9285ce4c22802`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.x86_64.rpm	`74f41d53a2ba7a2d825eca4e68c5826a`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.x86_64.rpm	`21fffca415363bf3205a1acad5d7a707`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.x86_64.rpm	`c13b35aa40480e1615c1388c2cd42934`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.x86_64.rpm	`b2969d17575d799403a0a5afe586a4d3`

Red Hat Enterprise Linux ES (v. 4)

SRPMS:
cyrus-sasl-2.1.19-14.src.rpm	`4949e987f4a486518ed80c970bba211d`

IA-32:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-devel-2.1.19-14.i386.rpm	`7068dd09926d9ddc3b4307d19ee79082`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`

IA-64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.ia64.rpm	`d61ba4984d550098f90c81ebed27a84a`
cyrus-sasl-devel-2.1.19-14.ia64.rpm	`5a6e3fbb46fa1c46439f3f645e3a18c0`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.ia64.rpm	`f791bbff376bf7b9e347f1528b9326be`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.ia64.rpm	`9b54fa31b202d2436455fbb9a09423ea`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.ia64.rpm	`2e2d77ba2b34d1370209188b4cfc003c`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.ia64.rpm	`ca0d49a8813a480782107fc2df5fd30a`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.ia64.rpm	`f384677d9fd1c9474d75fc7fad3f725a`

x86_64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.x86_64.rpm	`d1e5005820c522f8f847de220e85119e`
cyrus-sasl-devel-2.1.19-14.x86_64.rpm	`7a363042e12b94b32e74b9edf820e2cb`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.x86_64.rpm	`485846dfccf7ff8382b9285ce4c22802`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.x86_64.rpm	`74f41d53a2ba7a2d825eca4e68c5826a`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.x86_64.rpm	`21fffca415363bf3205a1acad5d7a707`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.x86_64.rpm	`c13b35aa40480e1615c1388c2cd42934`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.x86_64.rpm	`b2969d17575d799403a0a5afe586a4d3`

Red Hat Enterprise Linux WS (v. 4)

SRPMS:
cyrus-sasl-2.1.19-14.src.rpm	`4949e987f4a486518ed80c970bba211d`

IA-32:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-devel-2.1.19-14.i386.rpm	`7068dd09926d9ddc3b4307d19ee79082`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`

IA-64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.ia64.rpm	`d61ba4984d550098f90c81ebed27a84a`
cyrus-sasl-devel-2.1.19-14.ia64.rpm	`5a6e3fbb46fa1c46439f3f645e3a18c0`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.ia64.rpm	`f791bbff376bf7b9e347f1528b9326be`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.ia64.rpm	`9b54fa31b202d2436455fbb9a09423ea`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.ia64.rpm	`2e2d77ba2b34d1370209188b4cfc003c`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.ia64.rpm	`ca0d49a8813a480782107fc2df5fd30a`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.ia64.rpm	`f384677d9fd1c9474d75fc7fad3f725a`

x86_64:
cyrus-sasl-2.1.19-14.i386.rpm	`66d682b4378d802cbdc74072fa44ed13`
cyrus-sasl-2.1.19-14.x86_64.rpm	`d1e5005820c522f8f847de220e85119e`
cyrus-sasl-devel-2.1.19-14.x86_64.rpm	`7a363042e12b94b32e74b9edf820e2cb`
cyrus-sasl-gssapi-2.1.19-14.i386.rpm	`3445d5bccd9b1f6807b7cf6b29a0ee66`
cyrus-sasl-gssapi-2.1.19-14.x86_64.rpm	`485846dfccf7ff8382b9285ce4c22802`
cyrus-sasl-md5-2.1.19-14.i386.rpm	`b13267475db6aa2e1d03ebfa463d087d`
cyrus-sasl-md5-2.1.19-14.x86_64.rpm	`74f41d53a2ba7a2d825eca4e68c5826a`
cyrus-sasl-ntlm-2.1.19-14.i386.rpm	`5059e06456e3476737421ff14bb55662`
cyrus-sasl-ntlm-2.1.19-14.x86_64.rpm	`21fffca415363bf3205a1acad5d7a707`
cyrus-sasl-plain-2.1.19-14.i386.rpm	`eee8ea34647b182e97ea7d057d2d722d`
cyrus-sasl-plain-2.1.19-14.x86_64.rpm	`c13b35aa40480e1615c1388c2cd42934`
cyrus-sasl-sql-2.1.19-14.i386.rpm	`766d4b0a23cedbb8c3e053fa29414b07`
cyrus-sasl-sql-2.1.19-14.x86_64.rpm	`b2969d17575d799403a0a5afe586a4d3`

(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

157012 - [RFE] cyrus-sasl should use /dev/urandom by default
189814 - CVE-2006-1721 cyrus-sasl digest-md5 DoS
190113 - Missing build dependancy for zlib-devel in cyrus-sasl
243910 - krb5-libs are not thread-safe
244075 - Memory leaks in digest-md5 plugin
250732 - sasl-sample-server crash

References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1721
http://www.redhat.com/security/updates/classification/#moderate

These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/