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===================================================================== Red Hat Security Advisory
Synopsis: Moderate: samba security update Advisory ID: RHSA-2009:1529-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1529.html Issue date: 2009-10-27 CVE Names: CVE-2009-1888 CVE-2009-2813 CVE-2009-2906 CVE-2009-2948 =====================================================================
1. Summary:
Updated samba packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
3. Description:
Samba is a suite of programs used by machines to share files, printers, and other information.
A denial of service flaw was found in the Samba smbd daemon. An authenticated, remote user could send a specially-crafted response that would cause an smbd child process to enter an infinite loop. An authenticated, remote user could use this flaw to exhaust system resources by opening multiple CIFS sessions. (CVE-2009-2906)
An uninitialized data access flaw was discovered in the smbd daemon when using the non-default "dos filemode" configuration option in "smb.conf". An authenticated, remote user with write access to a file could possibly use this flaw to change an access control list for that file, even when such access should have been denied. (CVE-2009-1888)
A flaw was discovered in the way Samba handled users without a home directory set in the back-end password database (e.g. "/etc/passwd"). If a share for the home directory of such a user was created (e.g. using the automated "[homes]" share), any user able to access that share could see the whole file system, possibly bypassing intended access restrictions. (CVE-2009-2813)
The mount.cifs program printed CIFS passwords as part of its debug output when running in verbose mode. When mount.cifs had the setuid bit set, a local, unprivileged user could use this flaw to disclose passwords from a file that would otherwise be inaccessible to that user. Note: mount.cifs from the samba packages distributed by Red Hat does not have the setuid bit set. This flaw only affected systems where the setuid bit was manually set by an administrator. (CVE-2009-2948)
Users of Samba should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.
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/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
506996 - CVE-2009-1888 Samba improper file access 523752 - CVE-2009-2813 Samba: Share restriction bypass via home-less directory user account(s) 526074 - CVE-2009-2948 samba: information disclosure in suid mount.cifs 526645 - CVE-2009-2906 samba: infinite loop flaw in smbd on unexpected oplock break notification reply
6. Package List:
Red Hat Enterprise Linux AS version 4:
Source: samba-3.0.33-0.18.el4_8.src.rpm
i386: samba-3.0.33-0.18.el4_8.i386.rpm samba-client-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-swat-3.0.33-0.18.el4_8.i386.rpm
ia64: samba-3.0.33-0.18.el4_8.ia64.rpm samba-client-3.0.33-0.18.el4_8.ia64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.ia64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.ia64.rpm samba-swat-3.0.33-0.18.el4_8.ia64.rpm
ppc: samba-3.0.33-0.18.el4_8.ppc.rpm samba-client-3.0.33-0.18.el4_8.ppc.rpm samba-common-3.0.33-0.18.el4_8.ppc.rpm samba-common-3.0.33-0.18.el4_8.ppc64.rpm samba-debuginfo-3.0.33-0.18.el4_8.ppc.rpm samba-debuginfo-3.0.33-0.18.el4_8.ppc64.rpm samba-swat-3.0.33-0.18.el4_8.ppc.rpm
s390: samba-3.0.33-0.18.el4_8.s390.rpm samba-client-3.0.33-0.18.el4_8.s390.rpm samba-common-3.0.33-0.18.el4_8.s390.rpm samba-debuginfo-3.0.33-0.18.el4_8.s390.rpm samba-swat-3.0.33-0.18.el4_8.s390.rpm
s390x: samba-3.0.33-0.18.el4_8.s390x.rpm samba-client-3.0.33-0.18.el4_8.s390x.rpm samba-common-3.0.33-0.18.el4_8.s390.rpm samba-common-3.0.33-0.18.el4_8.s390x.rpm samba-debuginfo-3.0.33-0.18.el4_8.s390.rpm samba-debuginfo-3.0.33-0.18.el4_8.s390x.rpm samba-swat-3.0.33-0.18.el4_8.s390x.rpm
x86_64: samba-3.0.33-0.18.el4_8.x86_64.rpm samba-client-3.0.33-0.18.el4_8.x86_64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.x86_64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.x86_64.rpm samba-swat-3.0.33-0.18.el4_8.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source: samba-3.0.33-0.18.el4_8.src.rpm
i386: samba-3.0.33-0.18.el4_8.i386.rpm samba-client-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-swat-3.0.33-0.18.el4_8.i386.rpm
x86_64: samba-3.0.33-0.18.el4_8.x86_64.rpm samba-client-3.0.33-0.18.el4_8.x86_64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.x86_64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.x86_64.rpm samba-swat-3.0.33-0.18.el4_8.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source: samba-3.0.33-0.18.el4_8.src.rpm
i386: samba-3.0.33-0.18.el4_8.i386.rpm samba-client-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-swat-3.0.33-0.18.el4_8.i386.rpm
ia64: samba-3.0.33-0.18.el4_8.ia64.rpm samba-client-3.0.33-0.18.el4_8.ia64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.ia64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.ia64.rpm samba-swat-3.0.33-0.18.el4_8.ia64.rpm
x86_64: samba-3.0.33-0.18.el4_8.x86_64.rpm samba-client-3.0.33-0.18.el4_8.x86_64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.x86_64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.x86_64.rpm samba-swat-3.0.33-0.18.el4_8.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source: samba-3.0.33-0.18.el4_8.src.rpm
i386: samba-3.0.33-0.18.el4_8.i386.rpm samba-client-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-swat-3.0.33-0.18.el4_8.i386.rpm
ia64: samba-3.0.33-0.18.el4_8.ia64.rpm samba-client-3.0.33-0.18.el4_8.ia64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.ia64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.ia64.rpm samba-swat-3.0.33-0.18.el4_8.ia64.rpm
x86_64: samba-3.0.33-0.18.el4_8.x86_64.rpm samba-client-3.0.33-0.18.el4_8.x86_64.rpm samba-common-3.0.33-0.18.el4_8.i386.rpm samba-common-3.0.33-0.18.el4_8.x86_64.rpm samba-debuginfo-3.0.33-0.18.el4_8.i386.rpm samba-debuginfo-3.0.33-0.18.el4_8.x86_64.rpm samba-swat-3.0.33-0.18.el4_8.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 5 client):
Source: samba-3.0.33-3.15.el5_4.src.rpm
i386: samba-3.0.33-3.15.el5_4.i386.rpm samba-client-3.0.33-3.15.el5_4.i386.rpm samba-common-3.0.33-3.15.el5_4.i386.rpm samba-debuginfo-3.0.33-3.15.el5_4.i386.rpm samba-swat-3.0.33-3.15.el5_4.i386.rpm
x86_64: samba-3.0.33-3.15.el5_4.x86_64.rpm samba-client-3.0.33-3.15.el5_4.x86_64.rpm samba-common-3.0.33-3.15.el5_4.i386.rpm samba-common-3.0.33-3.15.el5_4.x86_64.rpm samba-debuginfo-3.0.33-3.15.el5_4.i386.rpm samba-debuginfo-3.0.33-3.15.el5_4.x86_64.rpm samba-swat-3.0.33-3.15.el5_4.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: samba-3.0.33-3.15.el5_4.src.rpm
i386: samba-3.0.33-3.15.el5_4.i386.rpm samba-client-3.0.33-3.15.el5_4.i386.rpm samba-common-3.0.33-3.15.el5_4.i386.rpm samba-debuginfo-3.0.33-3.15.el5_4.i386.rpm samba-swat-3.0.33-3.15.el5_4.i386.rpm
ia64: samba-3.0.33-3.15.el5_4.ia64.rpm samba-client-3.0.33-3.15.el5_4.ia64.rpm samba-common-3.0.33-3.15.el5_4.ia64.rpm samba-debuginfo-3.0.33-3.15.el5_4.ia64.rpm samba-swat-3.0.33-3.15.el5_4.ia64.rpm
ppc: samba-3.0.33-3.15.el5_4.ppc.rpm samba-client-3.0.33-3.15.el5_4.ppc.rpm samba-common-3.0.33-3.15.el5_4.ppc.rpm samba-common-3.0.33-3.15.el5_4.ppc64.rpm samba-debuginfo-3.0.33-3.15.el5_4.ppc.rpm samba-debuginfo-3.0.33-3.15.el5_4.ppc64.rpm samba-swat-3.0.33-3.15.el5_4.ppc.rpm
s390x: samba-3.0.33-3.15.el5_4.s390x.rpm samba-client-3.0.33-3.15.el5_4.s390x.rpm samba-common-3.0.33-3.15.el5_4.s390.rpm samba-common-3.0.33-3.15.el5_4.s390x.rpm samba-debuginfo-3.0.33-3.15.el5_4.s390.rpm samba-debuginfo-3.0.33-3.15.el5_4.s390x.rpm samba-swat-3.0.33-3.15.el5_4.s390x.rpm
x86_64: samba-3.0.33-3.15.el5_4.x86_64.rpm samba-client-3.0.33-3.15.el5_4.x86_64.rpm samba-common-3.0.33-3.15.el5_4.i386.rpm samba-common-3.0.33-3.15.el5_4.x86_64.rpm samba-debuginfo-3.0.33-3.15.el5_4.i386.rpm samba-debuginfo-3.0.33-3.15.el5_4.x86_64.rpm samba-swat-3.0.33-3.15.el5_4.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-2009-1888 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2813 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2906 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2948 http://www.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/
Copyright 2009 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux)
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