[RHSA-2008:0290-01] Critical: samba security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Critical: samba security and bug fix update

Advisory ID: RHSA-2008:0290-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0290.html

Issue date: 2008-05-28

CVE Names: CVE-2008-1105

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1. Summary:

 

Updated samba packages that fix a security issue and two bugs are now

available for Red Hat Enterprise Linux 5.

 

This update has been rated as having critical security impact by the Red

Hat Security Response Team.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

 

3. Description:

 

Samba is a suite of programs used by machines to share files, printers, and

other information.

 

A heap-based buffer overflow flaw was found in the way Samba clients handle

over-sized packets. If a client connected to a malicious Samba server, it

was possible to execute arbitrary code as the Samba client user. It was

also possible for a remote user to send a specially crafted print request

to a Samba server that could result in the server executing the vulnerable

client code, resulting in arbitrary code execution with the permissions of

the Samba server. (CVE-2008-1105)

 

Red Hat would like to thank Alin Rad Pop of Secunia Research for

responsibly disclosing this issue.

 

This update also addresses two issues which prevented Samba from joining

certain Windows domains with tightened security policies, and prevented

certain signed SMB content from working as expected:

 

* when some Windows® 2000-based domain controllers were set to use

mandatory signing, Samba clients would drop the connection because of an

error when generating signatures. This presented as a "Server packet had

invalid SMB signature" error to the Samba client. This update corrects the

signature generation error.

 

* Samba servers using the "net ads join" command to connect to a Windows

Server® 2003-based domain would fail with "failed to get schannel session

key from server" and "NT_STATUS_ACCESS_DENIED" errors. This update

correctly binds to the NETLOGON share, allowing Samba servers to connect to

the domain properly.

 

Users of Samba are advised to upgrade to these updated packages, which

contain a backported patch to resolve these issues.

 

4. 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

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

444637 - Join fails with stricter w2k3 security options set

446724 - CVE-2008-1105 Samba client buffer overflow

447380 - Signing issue: "Server packet had invalid SMB signature" with some Win2K servers

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/samba-3.0.28-1.el5_2.1.src.rpm

 

i386:

samba-3.0.28-1.el5_2.1.i386.rpm

samba-client-3.0.28-1.el5_2.1.i386.rpm

samba-common-3.0.28-1.el5_2.1.i386.rpm

samba-debuginfo-3.0.28-1.el5_2.1.i386.rpm

samba-swat-3.0.28-1.el5_2.1.i386.rpm

 

x86_64:

samba-3.0.28-1.el5_2.1.x86_64.rpm

samba-client-3.0.28-1.el5_2.1.x86_64.rpm

samba-common-3.0.28-1.el5_2.1.i386.rpm

samba-common-3.0.28-1.el5_2.1.x86_64.rpm

samba-debuginfo-3.0.28-1.el5_2.1.i386.rpm

samba-debuginfo-3.0.28-1.el5_2.1.x86_64.rpm

samba-swat-3.0.28-1.el5_2.1.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/samba-3.0.28-1.el5_2.1.src.rpm

 

i386:

samba-3.0.28-1.el5_2.1.i386.rpm

samba-client-3.0.28-1.el5_2.1.i386.rpm

samba-common-3.0.28-1.el5_2.1.i386.rpm

samba-debuginfo-3.0.28-1.el5_2.1.i386.rpm

samba-swat-3.0.28-1.el5_2.1.i386.rpm

 

ia64:

samba-3.0.28-1.el5_2.1.ia64.rpm

samba-client-3.0.28-1.el5_2.1.ia64.rpm

samba-common-3.0.28-1.el5_2.1.ia64.rpm

samba-debuginfo-3.0.28-1.el5_2.1.ia64.rpm

samba-swat-3.0.28-1.el5_2.1.ia64.rpm

 

ppc:

samba-3.0.28-1.el5_2.1.ppc.rpm

samba-client-3.0.28-1.el5_2.1.ppc.rpm

samba-common-3.0.28-1.el5_2.1.ppc.rpm

samba-common-3.0.28-1.el5_2.1.ppc64.rpm

samba-debuginfo-3.0.28-1.el5_2.1.ppc.rpm

samba-debuginfo-3.0.28-1.el5_2.1.ppc64.rpm

samba-swat-3.0.28-1.el5_2.1.ppc.rpm

 

s390x:

samba-3.0.28-1.el5_2.1.s390x.rpm

samba-client-3.0.28-1.el5_2.1.s390x.rpm

samba-common-3.0.28-1.el5_2.1.s390.rpm

samba-common-3.0.28-1.el5_2.1.s390x.rpm

samba-debuginfo-3.0.28-1.el5_2.1.s390.rpm

samba-debuginfo-3.0.28-1.el5_2.1.s390x.rpm

samba-swat-3.0.28-1.el5_2.1.s390x.rpm

 

x86_64:

samba-3.0.28-1.el5_2.1.x86_64.rpm

samba-client-3.0.28-1.el5_2.1.x86_64.rpm

samba-common-3.0.28-1.el5_2.1.i386.rpm

samba-common-3.0.28-1.el5_2.1.x86_64.rpm

samba-debuginfo-3.0.28-1.el5_2.1.i386.rpm

samba-debuginfo-3.0.28-1.el5_2.1.x86_64.rpm

samba-swat-3.0.28-1.el5_2.1.x86_64.rpm

 

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

 

7. References:

 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1105

http://www.redhat.com/security/updates/classification/#critical

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://www.redhat.com/security/team/contact/

 

Copyright 2008 Red Hat, Inc.

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