Linux kernel O_Direct denial of service

kernel-odirect-dos (25000) The risk level is classified as LowLow Risk

Description:

Linux kernel is vulnerable to a denial of service attack, caused by an unspecified vulnerability related to the use of O_Direct. A local attacker could exploit this vulnerability to cause an NFS client panic, resulting in a denial of service.

*CVSS:

Base Score: 4.7
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Complete
 
Temporal Score: 3.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest stable version of Linux kernel (2.6.15.5 or later), available from The Linux Kernel Archives. See References.

For Red Hat Linux:
Refer to RHSA-2006:0493-6 for patch, upgrade, or suggested workaround information. See References.

For Debian GNU/Linux:
Refer to DSA-1103-1 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-263-1 for patch, upgrade, or suggested workaround information. See References.

For SUSE Linux:
Refer to SUSE-SA:2006:028 for patch, upgrade, or suggested workaround information. See References.

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

References:

Platforms Affected:

  • Canonical Ubuntu 4.10
  • Canonical Ubuntu 5.04
  • Canonical Ubuntu 5.10
  • Debian Debian Linux 3.1
  • Linux Kernel 2.6.0 test7
  • Linux Kernel 2.6.0 test8
  • Linux Kernel 2.6.0 test9
  • Linux Kernel 2.6.0 test6
  • Linux Kernel 2.6.0 test5
  • Linux Kernel 2.6.0
  • Linux Kernel 2.6.0 test3
  • Linux Kernel 2.6.0 test2
  • Linux Kernel 2.6.0 test11
  • Linux Kernel 2.6.0 test10
  • Linux Kernel 2.6.0 test1
  • Linux Kernel 2.6.0 test4
  • Linux Kernel 2.6.1 rc1
  • Linux Kernel 2.6.1 rc2
  • Linux Kernel 2.6.1 rc3
  • Linux Kernel 2.6.1
  • Linux Kernel 2.6.10 rc2
  • Linux Kernel 2.6.10 rc3
  • Linux Kernel 2.6.10
  • Linux Kernel 2.6.10 rc1
  • Linux Kernel 2.6.11 rc2
  • Linux Kernel 2.6.11 rc3
  • Linux Kernel 2.6.11 rc4
  • Linux Kernel 2.6.11
  • Linux Kernel 2.6.11 rc5
  • Linux Kernel 2.6.11 rc1
  • Linux Kernel 2.6.11.1
  • Linux Kernel 2.6.11.10
  • Linux Kernel 2.6.11.11
  • Linux Kernel 2.6.11.12
  • Linux Kernel 2.6.11.2
  • Linux Kernel 2.6.11.3
  • Linux Kernel 2.6.11.4
  • Linux Kernel 2.6.11.5
  • Linux Kernel 2.6.11.6
  • Linux Kernel 2.6.11.7
  • Linux Kernel 2.6.11.8
  • Linux Kernel 2.6.11.9
  • Linux Kernel 2.6.12 rc6
  • Linux Kernel 2.6.12 rc5
  • Linux Kernel 2.6.12
  • Linux Kernel 2.6.12 rc4
  • Linux Kernel 2.6.12 rc3
  • Linux Kernel 2.6.12 rc2
  • Linux Kernel 2.6.12 rc1
  • Linux Kernel 2.6.12.1
  • Linux Kernel 2.6.12.12
  • Linux Kernel 2.6.12.2
  • Linux Kernel 2.6.12.22
  • Linux Kernel 2.6.12.3
  • Linux Kernel 2.6.12.4
  • Linux Kernel 2.6.12.5
  • Linux Kernel 2.6.12.6
  • Linux Kernel 2.6.13 rc6
  • Linux Kernel 2.6.13 rc7
  • Linux Kernel 2.6.13 rc5
  • Linux Kernel 2.6.13
  • Linux Kernel 2.6.13 rc4
  • Linux Kernel 2.6.13 rc3
  • Linux Kernel 2.6.13 rc2
  • Linux Kernel 2.6.13 rc1
  • Linux Kernel 2.6.13.1
  • Linux Kernel 2.6.13.2
  • Linux Kernel 2.6.13.3
  • Linux Kernel 2.6.13.4
  • Linux Kernel 2.6.13.5
  • Linux Kernel 2.6.14 rc3
  • Linux Kernel 2.6.14 rc1
  • Linux Kernel 2.6.14
  • Linux Kernel 2.6.14 rc4
  • Linux Kernel 2.6.14 rc5
  • Linux Kernel 2.6.14 rc2
  • Linux Kernel 2.6.14.1
  • Linux Kernel 2.6.14.2
  • Linux Kernel 2.6.14.3
  • Linux Kernel 2.6.14.4
  • Linux Kernel 2.6.14.5
  • Linux Kernel 2.6.14.6
  • Linux Kernel 2.6.14.7
  • Linux Kernel 2.6.15 rc2
  • Linux Kernel 2.6.15 rc3
  • Linux Kernel 2.6.15 rc4
  • Linux Kernel 2.6.15 rc5
  • Linux Kernel 2.6.15 rc6
  • Linux Kernel 2.6.15 rc7
  • Linux Kernel 2.6.15 rc1
  • Linux Kernel 2.6.15
  • Linux Kernel 2.6.15.1
  • Linux Kernel 2.6.15.2
  • Linux Kernel 2.6.15.3
  • Linux Kernel 2.6.15.4
  • Linux Kernel 2.6.2 rc1
  • Linux Kernel 2.6.2 rc2
  • Linux Kernel 2.6.2 rc3
  • Linux Kernel 2.6.2
  • Linux Kernel 2.6.3 rc1
  • Linux Kernel 2.6.3
  • Linux Kernel 2.6.3 rc2
  • Linux Kernel 2.6.3 rc3
  • Linux Kernel 2.6.3 rc4
  • Linux Kernel 2.6.4
  • Linux Kernel 2.6.4 rc3
  • Linux Kernel 2.6.4 rc2
  • Linux Kernel 2.6.4 rc1
  • Linux Kernel 2.6.5 rc1
  • Linux Kernel 2.6.5
  • Linux Kernel 2.6.5 rc2
  • Linux Kernel 2.6.5 rc3
  • Linux Kernel 2.6.6 rc3
  • Linux Kernel 2.6.6
  • Linux Kernel 2.6.6 rc2
  • Linux Kernel 2.6.6 rc1
  • Linux Kernel 2.6.7
  • Linux Kernel 2.6.7 rc3
  • Linux Kernel 2.6.7 rc1
  • Linux Kernel 2.6.7 rc2
  • Linux Kernel 2.6.8 rc4
  • Linux Kernel 2.6.8 rc3
  • Linux Kernel 2.6.8 rc2
  • Linux Kernel 2.6.8 rc1
  • Linux Kernel 2.6.8
  • Linux Kernel 2.6.8.1
  • Linux Kernel 2.6.9 rc2
  • Linux Kernel 2.6.9 rc3
  • Linux Kernel 2.6.9
  • Linux Kernel 2.6.9 rc4
  • Linux Kernel 2.6.9 rc1
  • MandrakeSoft Mandrake Linux 2006
  • MandrakeSoft Mandrake Linux 2006 X86_64
  • Novell UnitedLinux 1.0
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • SuSE Linux Enterprise Server 8
  • SuSE Linux Enterprise Server 9
  • SUSE SuSE Linux 10.0
  • SUSE SuSE Linux 9.1
  • SUSE SuSE Linux 9.2
  • SUSE SuSE Linux 9.3
  • SuSE SuSE Linux Desktop 1.0
  • SuSE SuSE SLES 9

Reported:

Mar 01, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.