Samba smbd share connection request denial of service
| samba-smbd-connection-dos (27648) |  Low Risk |
Description:
Samba is vulnerable to a denial of service caused by improper handling of share connection requests by smbd. A remote attacker could create multiple connections to shares to cause the smbd to consume all available memory resources, resulting in a denial of service.
Platforms Affected:
- Apple, Mac OS X 10.3.9
- Apple, Mac OS X 10.4.8
- Apple, Mac OS X Server 10.3.9
- Apple, Mac OS X Server 10.4.8
- Canonical, Ubuntu 5.04
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- Debian, Debian Linux 3.1
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Linux Advanced Workstation 2.1 Itanium
- Samba, Samba 3.0.1
- Samba, Samba 3.0.10
- Samba, Samba 3.0.11
- Samba, Samba 3.0.12
- Samba, Samba 3.0.13
- Samba, Samba 3.0.14
- Samba, Samba 3.0.14a
- Samba, Samba 3.0.15
- Samba, Samba 3.0.16
- Samba, Samba 3.0.17
- Samba, Samba 3.0.18
- Samba, Samba 3.0.19
- Samba, Samba 3.0.2
- Samba, Samba 3.0.20a
- Samba, Samba 3.0.20b
- Samba, Samba 3.0.21
- Samba, Samba 3.0.21a
- Samba, Samba 3.0.21b
- Samba, Samba 3.0.21c
- Samba, Samba 3.0.22
- Samba, Samba 3.0.3
- Samba, Samba 3.0.4
- Samba, Samba 3.0.5
- Samba, Samba 3.0.6
- Samba, Samba 3.0.7
- Samba, Samba 3.0.8
- Samba, Samba 3.0.9
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 10 F...
- Turbolinux, Turbolinux 10 Server
- Turbolinux, Turbolinux 10 Server x64 Ed
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux FUJI
- Turbolinux, Turbolinux Home
- Turbolinux, Turbolinux Multimedia
- Turbolinux, Turbolinux Personal
- Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
- Turbolinux, Turbolinux Appliance Server 2.0
- VMware, ESX Server 2.0.2
- VMware, ESX Server 2.1.3
- VMware, ESX Server 2.5.3
Remedy:
Apply Apple Security Update 2006-007, available from the Apple Web site. See References.
Apply the patch for this vulnerability or upgrade to the latest version of Samba (3.0.23 or later), available from the Samba Web site. See References.
For Debian GNU/Linux:
Refer to DSA-1110-1 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-07-10 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0591-6 for patch, upgrade, or suggested workaround information. See References.
For VMware ESX Server 2.0.2:
Apply the patch for this vulnerability, as listed in the VMware Advisory esx-202-200610-patch. See References.
For VMware ESX Server 2.1.3:
Apply the patch for this vulnerability, as listed in the VMware Advisory esx-213-200610-patch. See References.
For VMware 2.5.3:
Apply the patch for this vulnerability, as listed in the VMware Advisory esx-253-200610-patch. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- Apple Security Update 2006-007, About the security content of Security Update 2006-007 at http://docs.info.apple.com/article.html?artnum=304829.
- BugTraq Mailing List, Mon Jul 10 2006 - 16:05:00 CDT , [ANNOUNCEMENT] Samba 3.0.1 - 3.0.22: memory exhaustion DoS against smbd at http://archives.neohapsis.com/archives/bugtraq/2006-07/0130.html.
- Full-Disclosure Mailing List, Mon Nov 13 2006 - 17:22:38 CST, VMSA-2006-0006 - VMware ESX Server 2.5.3 Upgrade Patch 4 at http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0226.html.
- Full-Disclosure Mailing List, Mon Nov 13 2006 - 17:22:54 CST, VMSA-2006-0007 - VMware ESX Server 2.1.3 Upgrade Patch 2 at http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0224.html.
- Full-Disclosure Mailing List, Mon Nov 13 2006 - 17:23:03 CST, VMSA-2006-0008 - VMware ESX Server 2.0.2 Upgrade Patch 2 at http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0225.html.
- Samba Security Announcement 10 July 2006, CVE-2006-3403: Memory exhaustion DoS against smbd at http://www.samba.org/samba/security/CAN-2006-3403.html.
- Samba Web site, Samba - Security Updates and Information at http://www.samba.org/samba/history/security.html.
- VMware Advisory esx-253-200610-patch, VMware ESX Server 2.5.3 Upgrade Patch 4 (for 2.5.3 Systems Only) at http://www.vmware.com/download/esx/esx-253-200610-patch.html.
- VMware Web site, VMware ESX Server 2.1.3 Upgrade Patch 2 (for 2.1.3 Systems Only) at http://www.vmware.com/download/esx/esx-213-200610-patch.html.
- VMware Web site, VMware ESX Server 2.0.2 Upgrade Patch 2 (for 2.0.2 Systems Only) at http://www.vmware.com/download/esx/esx-202-200610-patch.html.
- ASA-2006-172: samba security update (RHSA-2006-0591)
- BID-18927: Samba Internal Data Structures Denial of Service Vulnerability
- CVE-2006-3403: The smdb daemon (smbd/service.c) in Samba 3.0.1 through 3.0.22 allows remote attackers to cause a denial of service (memory consumption) via a large number of share connection requests.
- DSA-1110: samba -- missing input sanitising
- GLSA-200607-10: Samba: Denial of Service vulnerability
- MDKSA-2006:120: Updated samba packages fix DoS vulnerability
- RHSA-2006-0591: samba security update
- SA20980: Samba Multiple Share Connection Requests Denial of Service
- SA22875: VMware ESX Server Multiple Vulnerabilities
- SA23155: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1016459: Samba smbd Memory Limit Error in make_connection() Lets Remote Users Deny Service
- SUSE-SR:2006:017: SUSE Security Summary Report
Reported:
Jul 10, 2006
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