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Test ID:1.3.6.1.4.1.25623.1.0.65011
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-839-1 (samba)
Summary:Ubuntu USN-839-1 (samba)
Description:The remote host is missing an update to samba
announced via advisory USN-839-1.

Details follow:

J. David Hester discovered that Samba incorrectly handled users that lack
home directories when the automated [homes] share is enabled. An
authenticated user could connect to that share name and gain access to the
whole filesystem. (CVE-2009-2813)

Tim Prouty discovered that the smbd daemon in Samba incorrectly handled
certain unexpected network replies. A remote attacker could send malicious
replies to the server and cause smbd to use all available CPU, leading to a
denial of service. (CVE-2009-2906)

Ronald Volgers discovered that the mount.cifs utility, when installed as a
setuid program, would not verify user permissions before opening a
credentials file. A local user could exploit this to use or read the
contents of unauthorized credential files. (CVE-2009-2948)

Reinhard Nil discovered that the smbclient utility contained format string
vulnerabilities in its file name handling. Because of security features in
Ubuntu, exploitation of this vulnerability is limited. If a user or
automated system were tricked into processing a specially crafted file
name, smbclient could be made to crash, possibly leading to a denial of
service. This only affected Ubuntu 8.10. (CVE-2009-1886)

Jeremy Allison discovered that the smbd daemon in Samba incorrectly handled
permissions to modify access control lists when dos filemode is enabled. A
remote attacker could exploit this to modify access control lists. This
only affected Ubuntu 8.10 and Ubuntu 9.04. (CVE-2009-1886)

Solution:
The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 6.06 LTS:
samba 3.0.22-1ubuntu3.9
smbfs 3.0.22-1ubuntu3.9

Ubuntu 8.04 LTS:
samba 3.0.28a-1ubuntu4.9
smbfs 3.0.28a-1ubuntu4.9

Ubuntu 8.10:
samba 2:3.2.3-1ubuntu3.6
smbclient 2:3.2.3-1ubuntu3.6
smbfs 2:3.2.3-1ubuntu3.6

Ubuntu 9.04:
samba 2:3.3.2-1ubuntu3.2
smbfs 2:3.3.2-1ubuntu3.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-839-1
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-1886
Debian Security Information: DSA-1823 (Google Search)
http://www.debian.org/security/2009/dsa-1823
http://www.mandriva.com/security/advisories?name=MDVSA-2009:196
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.521591
http://www.ubuntu.com/usn/USN-839-1
BugTraq ID: 35472
http://www.securityfocus.com/bid/35472
http://www.securitytracker.com/id?1022441
http://secunia.com/advisories/35539
http://secunia.com/advisories/35573
http://secunia.com/advisories/35606
http://secunia.com/advisories/36918
http://www.vupen.com/english/advisories/2009/1664
XForce ISS Database: samba-smbclient-format-string(51328)
http://xforce.iss.net/xforce/xfdb/51328
Common Vulnerability Exposure (CVE) ID: CVE-2009-1888
Bugtraq: 20091112 rPSA-2009-0145-1 samba samba-client samba-server samba-swat (Google Search)
http://www.securityfocus.com/archive/1/archive/1/507856/100/0/threaded
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10790
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7292
http://www.securitytracker.com/id?1022442
XForce ISS Database: samba-acl-security-bypass(51327)
http://xforce.iss.net/xforce/xfdb/51327
Common Vulnerability Exposure (CVE) ID: CVE-2009-2813
http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00098.html
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00095.html
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561439
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021111.1-1
SuSE Security Announcement: SUSE-SR:2009:017 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
BugTraq ID: 36363
http://www.securityfocus.com/bid/36363
http://osvdb.org/57955
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7211
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7791
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:9191
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7257
http://secunia.com/advisories/36701
http://secunia.com/advisories/36893
http://secunia.com/advisories/36937
http://secunia.com/advisories/36953
http://secunia.com/advisories/37428
http://www.vupen.com/english/advisories/2009/2810
XForce ISS Database: macosx-smb-security-bypass(53174)
http://xforce.iss.net/xforce/xfdb/53174
Common Vulnerability Exposure (CVE) ID: CVE-2009-2906
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
BugTraq ID: 36573
http://www.securityfocus.com/bid/36573
http://osvdb.org/58519
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7090
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:9944
http://www.securitytracker.com/id?1022976
XForce ISS Database: samba-smb-dos(53575)
http://xforce.iss.net/xforce/xfdb/53575
Common Vulnerability Exposure (CVE) ID: CVE-2009-2948
BugTraq ID: 36572
http://www.securityfocus.com/bid/36572
http://osvdb.org/58520
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10434
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:7087
http://www.securitytracker.com/id?1022975
XForce ISS Database: samba-mountcifs-info-disclosure(53574)
http://xforce.iss.net/xforce/xfdb/53574
CopyrightCopyright (c) 2009 E-Soft Inc. http://www.securityspace.com

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