samba's make_connection_snum() handles certain input incorrectly, which may lead to disclosure of the root directory. CVE-2009-2813 has been assigned to this issue. Additionally an information disclosure vulnerability in mount.cifs has been fixed (CVE-2009-2948) as well as a DoS condition. (CVE-2009-2906)

Multiple vulnerabilities has been found and corrected in samba :

The acl_group_override function in smbd/posix_acls.c in smbd in Samba 3.0.x before 3.0.35, 3.1.x and 3.2.x before 3.2.13, and 3.3.x before 3.3.6, when dos filemode is enabled, allows remote attackers to modify access control lists for files via vectors related to read access to uninitialized memory (CVE-2009-1888).

The SMB (aka Samba) subsystem in Apple Mac OS X 10.5.8, when Windows File Sharing is enabled, does not properly handle errors in resolving pathnames, which allows remote authenticated users to bypass intended sharing restrictions, and read, create, or modify files, in certain circumstances involving user accounts that lack home directories (CVE-2009-2813).

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet (CVE-2009-2906).

mount.cifs in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8 and 3.4 before 3.4.2, when mount.cifs is installed suid root, does not properly enforce permissions, which allows local users to read part of the credentials file and obtain the password by specifying the path to the credentials file and using the --verbose or
-v option (CVE-2009-2948).

The version of samba shipping with Mandriva Linux 2008.0 has been updated to the latest version (3.0.37) that includes the fixes for these issues.

Updated samba3x packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise Linux 5 Supplementary.

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

Samba is a suite of programs used by machines to share files, printers, and other information. These samba3x packages provide Samba 3.3, which is a Technology Preview for Red Hat Enterprise Linux 5.
These packages cannot be installed in parallel with the samba packages. Note: Technology Previews are not intended for production use.

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 samba3x 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)

This update also fixes the following bugs :

* the samba3x packages contained missing and conflicting license information. License information was missing for the libtalloc, libtdb, and tdb-tools packages. The samba3x-common package provided a COPYING file; however, it stated the license was GPLv2, while RPM metadata stated the licenses were either GPLv3 or LGPLv3. This update adds the correct licensing information to the samba3x-common, libsmbclient, libtalloc, libtdb, and tdb-tools packages. (BZ#528633)

* the upstream Samba version in the samba3x packages distributed with the RHEA-2009:1399 update contained broken implementations of the Netlogon credential chain and SAMR access checks security subsystems.
This prevented Samba from acting as a domain controller: Client systems could not join the domain; users could not authenticate; and systems could not access the user and group list. (BZ#524551)

* this update resolves interoperability issues with Windows 7 and Windows Server 2008 R2. (BZ#529022)

These packages upgrade Samba from version 3.3.5 to version 3.3.8.
Refer to the Samba Release Notes for a list of changes between versions: http://samba.org/samba/history/

Users of samba3x should upgrade to these updated packages, which resolve these issues. After installing this update, the smb service will be restarted automatically.

samba's make_connection_snum() handles certain input incorrectly, which may lead to disclosure of the root directory. CVE-2009-2813 has been assigned to this issue. Additionally an information disclosure vulnerability in mount.cifs has been fixed (CVE-2009-2948) as well as a DoS condition (CVE-2009-2906).

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
42227	SuSE9 Security Update : Samba (YOU Patch Number 12518)	Nessus	SuSE Local Security Checks	2009/10/23	2021/1/14	medium
43023	Mandriva Linux Security Advisory : samba (MDVSA-2009:320)	Nessus	Mandriva Local Security Checks	2009/12/7	2021/1/6	medium
63900	RHEL 5 : samba3x (RHSA-2009:1585)	Nessus	Red Hat Local Security Checks	2013/1/24	2021/1/14	medium
42228	openSUSE Security Update : cifs-mount (cifs-mount-1354)	Nessus	SuSE Local Security Checks	2009/10/23	2021/1/14	medium
42231	openSUSE Security Update : cifs-mount (cifs-mount-1354)	Nessus	SuSE Local Security Checks	2009/10/23	2021/1/14	medium
42233	SuSE 11 Security Update : Samba (SAT Patch Number 1352)	Nessus	SuSE Local Security Checks	2009/10/23	2021/1/14	medium
42321	openSUSE 10 Security Update : cifs-mount (cifs-mount-6519)	Nessus	SuSE Local Security Checks	2009/10/30	2021/1/14	medium

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