Samba MS-RPC request heap corruption

samba-msrpc-heap-corruption (18519)

High Risk

Description:

Samba is vulnerable to an integer overflow when processing MS-RPC requests. A remote authenticated attacker could send a specially-crafted message requesting multiple security descriptors, which would lead to heap corruption and execution of arbitrary commands on the system with root privileges or possibly cause a denial of service.

Platforms Affected:

• Canonical, Ubuntu 4.10
• Debian, Debian Linux 3.0
• FedoraProject, Fedora Core 2
• FedoraProject, Fedora Core 3
• Gentoo, Linux
• MandrakeSoft, Mandrake Linux 10.0 AMD64
• MandrakeSoft, Mandrake Linux 10.0
• MandrakeSoft, Mandrake Linux 10.1
• MandrakeSoft, Mandrake Linux 10.1 X86_64
• MandrakeSoft, Mandrake Linux 9.2 AMD64
• MandrakeSoft, Mandrake Linux 9.2
• MandrakeSoft, Mandrake Linux Corporate Server 2.1
• MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
• Novell, Linux Desktop 9
• OpenPKG, OpenPKG 2.1
• OpenPKG, OpenPKG 2.2
• OpenPKG, OpenPKG CURRENT
• RedHat, Enterprise Linux 2.1 WS
• RedHat, Enterprise Linux 2.1 ES
• RedHat, Enterprise Linux 2.1 AS
• RedHat, Enterprise Linux 2.1 AW
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 WS
• RedHat, Enterprise Linux 3 Desktop
• RedHat, Linux Advanced Workstation 2.1 Itanium
• Samba, Samba 2.0.0
• Samba, Samba 2.0.1
• Samba, Samba 2.0.10
• Samba, Samba 2.0.2
• Samba, Samba 2.0.3
• Samba, Samba 2.0.4
• Samba, Samba 2.0.5
• Samba, Samba 2.0.6
• Samba, Samba 2.0.7
• Samba, Samba 2.0.8
• Samba, Samba 2.0.9
• Samba, Samba 2.2.0
• Samba, Samba 2.2.0a
• Samba, Samba 2.2.11
• Samba, Samba 2.2.1a
• Samba, Samba 2.2.2
• Samba, Samba 2.2.3
• Samba, Samba 2.2.3a
• Samba, Samba 2.2.4
• Samba, Samba 2.2.5
• Samba, Samba 2.2.6
• Samba, Samba 2.2.7
• Samba, Samba 2.2.7a
• Samba, Samba 2.2.8
• Samba, Samba 2.2.8a
• Samba, Samba 2.2.9
• Samba, Samba 2.2a
• Samba, Samba 3.0 Alpha
• Samba, Samba 3.0.0
• Samba, Samba 3.0.1
• Samba, Samba 3.0.2
• Samba, Samba 3.0.2a
• Samba, Samba 3.0.3
• Samba, Samba 3.0.4
• Samba, Samba 3.0.4 R1
• 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
• SuSE, SuSE Linux 8.1
• SuSE, SuSE Linux 8.2
• SuSE, SuSE Linux 9.0
• SuSE, SuSE Linux 9.1
• SuSE, SuSE Linux Desktop 1.0
• SuSE, SuSE Linux Enterprise Server 8.0
• Turbolinux, Turbolinux 10 Desktop
• Turbolinux, Turbolinux 10 F...
• Turbolinux, Turbolinux 10 Server
• Turbolinux, Turbolinux 7 Server
• Turbolinux, Turbolinux 7 Workstation
• Turbolinux, Turbolinux 8 Server
• Turbolinux, Turbolinux 8 Workstation
• Turbolinux, Turbolinux Appliance Server 1.0
• Turbolinux, Turbolinux Home
• Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
• Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

For Samba 3.0.9:
Apply the samba-3.0.9-CAN-2004-1154 patch for this vulnerability, available from the Samba FTP Security Patch site. See References.

For Trustix Secure Linux:
Upgrade to the latest samba package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0066 for more information. See References.

Trustix Secure Linux 1.5: 2.2.12-0.2tr or later
Trustix Secure Linux 2.0: 2.2.12-0.2tr or later
Trustix Secure Linux 2.1: 3.0.10-1tr or later
Trustix Secure Linux 2.2: 3.0.10-1tr or later

For Red Hat Linux:
Upgrade to the latest samba package, as listed below. Refer to RHSA-2005:020-04 for more information. See References.

Red Hat Enterprise Linux AS, ES, WS (v. 2.1) and Red Hat Linux Advanced Workstation 2.1: 2.2.12-1.21as.3 or later

For Red Hat Linux:
Upgrade to the latest samba package, as listed below. Refer to RHSA-2004:670-10 for more information. See References.

Red Hat Enterprise Linux AS, ES, WS (v. 2.3) and Red Hat Desktop 3: 3.0.9-1.3E.1 or later

For Ubuntu Linux:
Upgrade to the latest samba package (3.0.7-1ubuntu6.3 or later), as listed in USN-41-1 December 17, 2004 for more information. See References.

For Gentoo Linux:
Upgrade to the latest version of samba (3.0.9-r1 or later), as listed in GLSA 200412-13. See References.

For Fedora Core 3:
Upgrade to the latest samba package (3.0.10-1.fc3 or later), as listed in Fedora Update Notification FEDORA-2004-562. See References.

For Fedora Core 2:
Upgrade to the latest samba package (3.0.10-1.fc2 or later), as listed in Fedora Update Notification FEDORA-2004-561. See References.

For Turbolinux:
Upgrade to the latest samba package, as listed below. Refer to Turbolinux Security Advisory TLSA-2005-21 for more information. See References.

Turbolinux Appliance Server 1.0 Hosting Edition: 2.3-5 or later
Turbolinux 10 Server: 2.2.7a-14jaJP or later
Turbolinux Home: 2.2.7a-14jaJP or later
Turbolinux 10 Desktop: 2.2.7a-14jaJP or later
Turbolinux 8 Server: 2.2.7a-14jaJP or later
Turbolinux 8 Workstation: 2.2.7a-14jaJP or later
Turbolinux 7 Server: 2.2.7a-14jaJP or later
Turbolinux 7 Workstation: 2.2.7a-14jaJP or later

For Debian GNU/Linux:
Refer to DSA-701-2 for patch, upgrade, or suggested workaround information. See References.

For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2004.054 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Gain Access

References:

• CIAC Information Bulletin P-070, Updated Samba Packages at http://www.ciac.org/ciac/bulletins/p-070.shtml.
• Fedora Update Notification FEDORA-2004-561, samba-3.0.10-1.fc2 update at http://www.linuxsecurity.com/content/view/117623/102/.
• Fedora Update Notification FEDORA-2004-562, samba-3.0.10-1.fc3 update at http://www.linuxsecurity.com/content/view/117624/102/.
• iDEFENSE Security Advisory 12.16.04, Samba smbd Security Descriptor Integer Overflow Vulnerability at http://www.idefense.com/application/poi/display?id=165&type=vulnerabilities.
• Samba FTP Security Patch site, Index of /samba/ftp/patches/security at http://us1.samba.org/samba/ftp/patches/security/.
• Samba Web site, Samba - Security Updates and Information at http://us1.samba.org/samba/history/security.html.
• Sun Security Alert 57730, Security Vulnerability in Samba(7) Versions Prior to 3.0.10 May Allow Unauthorized Root Privileges at http://au.sunsolve.sun.com/search/document.do?assetkey=1-26-57730-1.
• BID-11973: Samba Directory Access Control List Remote Integer Overflow Vulnerability
• CVE-2004-1154: Integer overflow in the Samba daemon (smbd) in Samba 2.x and 3.0.x through 3.0.9 allows remote authenticated users to cause a denial of service (application crash) and possibly execute arbitrary code via a Samba request with a large number of security descriptors that triggers a heap-based buffer overflow.
• DSA-701: samba -- integer overflows
• GLSA-200412-13: Samba: Integer overflow
• MDKSA-2004:158: Updated samba packages fix integer overflow vulnerabilities
• OpenPKG-SA-2004.054: Samba
• RHSA-2004-670: samba security update
• RHSA-2004-681: samba security update
• RHSA-2005-020: samba security update
• SA13453: Samba Security Descriptor Parsing Integer Overflow Vulnerability
• SUSE-SA:2004:045: samba: remote privilege escalation
• SUSE-SR:2004:005: SUSE Security Summary Report

Reported:

Dec 16, 2004

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