Samba FD_SET denial of service

samba-fdset-dos (65724) The risk level is classified as MediumMedium Risk

Description:

Samba is vulnerable to a denial of service, caused by a memory corruption error related to missing range checks on file descriptors being used in the "FD_SET" macro. By performing a select on a bad file descriptor set, a remote attacker could exploit this vulnerability to cause the application to crash or possibly execute arbitrary code on the system.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Samba (3.5.7 or later), available from the Samba Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Apple Web site: About the security content of Mac OS X v10.6.8 and Security Update 2011-004.
  • Samba Web site: Denial of service - memory corruption.
  • BID-46597: Samba 'FD_SET' Memory Corruption Vulnerability
  • CVE-2011-0719: Samba 3.x before 3.3.15, 3.4.x before 3.4.12, and 3.5.x before 3.5.7 does not perform range checks for file descriptors before use of the FD_SET macro, which allows remote attackers to cause a denial of service (stack memory corruption, and infinite loop or daemon crash) by opening a large number of files, related to (1) Winbind or (2) smbd.
  • DSA-2175: samba -- missing input sanitising
  • OSVDB ID: 71268: Samba FD_SET Macro Memory Corruption
  • RHSA-2011-0305: Important: samba security update
  • RHSA-2011-0306: Important: samba3x security update
  • SA43512: Samba FD_SET Memory Corruption Vulnerability
  • SA45054: Apple Mac OS X Multiple Vulnerabilities
  • SUSE-SR:2011:008: SUSE Security Summary Report
  • VUPEN/ADV-2011-0517: Samba FD_SET Macro Range Checks Memory Corruption Vulnerability

Platforms Affected:

  • Apple Mac OS X 10.6
  • Apple Mac OS X 10.6.1
  • Apple Mac OS X 10.6.2
  • Apple Mac OS X 10.6.3
  • Apple Mac OS X 10.6.4
  • Apple Mac OS X 10.6.5
  • Apple Mac OS X 10.6.6
  • Apple Mac OS X 10.6.7
  • Apple Mac OS X Server 10.6
  • Apple Mac OS X Server 10.6.1
  • Apple Mac OS X Server 10.6.2
  • Apple Mac OS X Server 10.6.3
  • Apple Mac OS X Server 10.6.4
  • Apple Mac OS X Server 10.6.5
  • Apple Mac OS X Server 10.6.6
  • Apple Mac OS X Server 10.6.7
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux EUS 5.6.z
  • RedHat Enterprise Linux HPC Node 6
  • RedHat Enterprise Linux Long Life 5.6
  • RedHat Enterprise Linux Server EUS 6.0.z
  • Samba Samba 3.0.0
  • 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 3.0.20
  • 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 3.0.23
  • Samba Samba 3.0.23a
  • Samba Samba 3.0.23b
  • Samba Samba 3.0.23c
  • Samba Samba 3.0.23d
  • Samba Samba 3.0.24
  • Samba Samba 3.0.25 Rc1
  • Samba Samba 3.0.25 Rc2
  • Samba Samba 3.0.25 Pre2
  • Samba Samba 3.0.25 Pre1
  • Samba Samba 3.0.25 Rc3
  • Samba Samba 3.0.25
  • Samba Samba 3.0.25a
  • Samba Samba 3.0.25b
  • Samba Samba 3.0.25c
  • Samba Samba 3.0.26
  • Samba Samba 3.0.26a
  • Samba Samba 3.0.27
  • Samba Samba 3.0.27a
  • Samba Samba 3.0.28
  • Samba Samba 3.0.28a
  • Samba Samba 3.0.29
  • Samba Samba 3.0.2a
  • Samba Samba 3.0.3
  • Samba Samba 3.0.30
  • Samba Samba 3.0.31
  • Samba Samba 3.0.32
  • Samba Samba 3.0.33
  • Samba Samba 3.0.34
  • Samba Samba 3.0.35
  • Samba Samba 3.0.36
  • Samba Samba 3.0.37
  • Samba Samba 3.0.4 Rc1
  • 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
  • Samba Samba 3.1
  • Samba Samba 3.2
  • Samba Samba 3.2.0
  • Samba Samba 3.2.1
  • Samba Samba 3.2.10
  • Samba Samba 3.2.11
  • Samba Samba 3.2.12
  • Samba Samba 3.2.13
  • Samba Samba 3.2.14
  • Samba Samba 3.2.15
  • Samba Samba 3.2.2
  • Samba Samba 3.2.3
  • Samba Samba 3.2.4
  • Samba Samba 3.2.5
  • Samba Samba 3.2.6
  • Samba Samba 3.2.7
  • Samba Samba 3.2.8
  • Samba Samba 3.2.9
  • Samba Samba 3.3
  • Samba Samba 3.3.0
  • Samba Samba 3.3.1
  • Samba Samba 3.3.10
  • Samba Samba 3.3.11
  • Samba Samba 3.3.12
  • Samba Samba 3.3.2
  • Samba Samba 3.3.3
  • Samba Samba 3.3.4
  • Samba Samba 3.3.5
  • Samba Samba 3.3.6
  • Samba Samba 3.3.7
  • Samba Samba 3.3.8
  • Samba Samba 3.3.9
  • Samba Samba 3.4.0
  • Samba Samba 3.4.1
  • Samba Samba 3.4.2
  • Samba Samba 3.4.3
  • Samba Samba 3.4.4
  • Samba Samba 3.4.5
  • Samba Samba 3.4.6
  • Samba Samba 3.5

Reported:

Mar 01, 2011

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