Executive Summary

Summary
Title Updated samba packages fix security issues
Informations
Name RHSA-2004:632 First vendor Publication 2004-11-16
Vendor RedHat Last vendor Modification 2004-11-16
Severity (Vendor) N/A Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated samba packages that fix various security vulnerabilities are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux WS version 2.1 - i386 Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, ppc64, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

Samba provides file and printer sharing services to SMB/CIFS clients.

During a code audit, Stefan Esser discovered a buffer overflow in Samba versions prior to 3.0.8 when handling unicode filenames. An authenticated remote user could exploit this bug which may lead to arbitrary code execution on the server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0882 to this issue. Red Hat believes that the Exec-Shield technology (enabled by default since Update 3) will block attempts to remotely exploit this vulnerability on x86 architectures.

Additionally, a bug was found in the input validation routines in versions of Samba prior to 3.0.8 that caused the smbd process to consume abnormal amounts of system memory. An authenticated remote user could exploit this bug to cause a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0930 to this issue.

Users of Samba should upgrade to these updated packages, which contain backported security patches, and are not vulnerable to these issues.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/ for more info):

138325 - CAN-2004-0930 wildcard remote DoS 134640 - CAN-2004-0882 unicode parsing overflow

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2004-632.html

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10936
 
Oval ID: oval:org.mitre.oval:def:10936
Title: The ms_fnmatch function in Samba 3.0.4 and 3.0.7 and possibly other versions allows remote authenticated users to cause a denial of service (CPU consumption) via a SAMBA request that contains multiple * (wildcard) characters.
Description: The ms_fnmatch function in Samba 3.0.4 and 3.0.7 and possibly other versions allows remote authenticated users to cause a denial of service (CPU consumption) via a SAMBA request that contains multiple * (wildcard) characters.
Family: unix Class: vulnerability
Reference(s): CVE-2004-0930
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:9969
 
Oval ID: oval:org.mitre.oval:def:9969
Title: Buffer overflow in the QFILEPATHINFO request handler in Samba 3.0.x through 3.0.7 may allow remote attackers to execute arbitrary code via a TRANSACT2_QFILEPATHINFO request with a small "maximum data bytes" value.
Description: Buffer overflow in the QFILEPATHINFO request handler in Samba 3.0.x through 3.0.7 may allow remote attackers to execute arbitrary code via a TRANSACT2_QFILEPATHINFO request with a small "maximum data bytes" value.
Family: unix Class: vulnerability
Reference(s): CVE-2004-0882
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 10
Application 8
Os 1
Os 1
Os 9
Os 1
Os 2
Os 2
Os 2

OpenVAS Exploits

Date Description
2009-10-10 Name : SLES9: Security update for samba
File : nvt/sles9p5015059.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200411-21 (samba)
File : nvt/glsa_200411_21.nasl
2008-09-04 Name : FreeBSD Ports: samba
File : nvt/freebsd_samba0.nasl
2008-09-04 Name : FreeBSD Ports: samba
File : nvt/freebsd_samba1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
11782 Samba QFILEPATHINFO Unicode Filename Request Handler Overflow

11555 Samba ms_fnmatch() Function Wildcard Matching Remote DoS

Samba server contains a flaw in ms_fnmatch.c that may allow a malicious user to cause a denial of service. The issue is triggered when a request is made for a resource which contains multiple wildcard characters; this causes the server to fall into a loop whose size grows exponentially with the number of wildcard characters used. It is possible that the flaw may allow a remote server crash, resulting in a loss of availability.

Snort® IPS/IDS

Date Description
2014-01-10 Samba unicode filename buffer overflow attempt
RuleID : 15986 - Revision : 8 - Type : SERVER-SAMBA
2014-01-10 Samba wildcard filename matching denial of service attempt
RuleID : 15581 - Revision : 5 - Type : SERVER-SAMBA

Nessus® Vulnerability Scanner

Date Description
2009-04-23 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_ba13dc13340d11d9ac1b000d614f7fad.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-22-1.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-29-1.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-30-1.nasl - Type : ACT_GATHER_INFO
2005-07-14 Name : The remote host is missing Sun Security Patch number 119757-43
File : solaris10_119757.nasl - Type : ACT_GATHER_INFO
2005-07-14 Name : The remote host is missing Sun Security Patch number 119758-43
File : solaris10_x86_119758.nasl - Type : ACT_GATHER_INFO
2005-07-13 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_f3d3f62138d811d98fff000c6e8f12ef.nasl - Type : ACT_GATHER_INFO
2004-11-30 Name : The remote Fedora Core host is missing a security update.
File : fedora_2004-459.nasl - Type : ACT_GATHER_INFO
2004-11-30 Name : The remote Fedora Core host is missing a security update.
File : fedora_2004-460.nasl - Type : ACT_GATHER_INFO
2004-11-19 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2004-136.nasl - Type : ACT_GATHER_INFO
2004-11-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2004-632.nasl - Type : ACT_GATHER_INFO
2004-11-16 Name : The remote host is missing a vendor-supplied security patch
File : suse_SA_2004_040.nasl - Type : ACT_GATHER_INFO
2004-11-13 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200411-21.nasl - Type : ACT_GATHER_INFO
2004-11-13 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2004-131.nasl - Type : ACT_GATHER_INFO
2004-11-13 Name : The remote service is vulnerable to several flaws.
File : samba_wildcard.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:48:47
  • Multiple Updates