Linux kernel dnotify privilege escalation

linux-kernel-dnotify-privilege-escalation (42131) The risk level is classified as HighHigh Risk

Description:

Linux kernel could allow a local attacker to gain elevated privileges on the system, caused by a race condition error in the dnotify subsystem between the fcntl() and close() calls. An attacker could exploit this vulnerability to gain root privileges or cause the system to crash.

*CVSS:

Base Score: 7.2
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.3
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of Linux kernel (2.6.25.1 or later), available from The Linux Kernel Archives Web site. See References.

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

References:

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 7.04
  • Canonical Ubuntu 7.10
  • Canonical Ubuntu 8.04 LTS
  • Debian Debian Linux 4.0
  • Linux Kernel 2.6.0 test5
  • Linux Kernel 2.6.0 test4
  • Linux Kernel 2.6.0 test3
  • Linux Kernel 2.6.0 test6
  • Linux Kernel 2.6.0 test7
  • Linux Kernel 2.6.0 test8
  • Linux Kernel 2.6.0 test9
  • Linux Kernel 2.6.0 test9-cvs
  • Linux Kernel 2.6.0 test2
  • Linux Kernel 2.6.0 test11
  • Linux Kernel 2.6.10
  • Linux Kernel 2.6.11.10
  • Linux Kernel 2.6.11.12
  • 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 2.6.15
  • Linux Kernel 2.6.18
  • Linux Kernel 2.6.20
  • Linux Kernel 2.6.20.1
  • Linux Kernel 2.6.20.11
  • Linux Kernel 2.6.20.13
  • Linux Kernel 2.6.20.2
  • Linux Kernel 2.6.20.3
  • Linux Kernel 2.6.21
  • Linux Kernel 2.6.21 rc3
  • Linux Kernel 2.6.21 rc4
  • Linux Kernel 2.6.21 rc5
  • Linux Kernel 2.6.21 rc7
  • Linux Kernel 2.6.21 rc6
  • Linux Kernel 2.6.23.1
  • Linux Kernel 2.6.23.14
  • Linux Kernel 2.6.23.9
  • Linux Kernel 2.6.24 rc2
  • Linux Kernel 2.6.3
  • Linux Kernel 2.6.4
  • Linux Kernel 2.6.5
  • Linux Kernel 2.6.6
  • Linux Kernel 2.6.6 rc1
  • Linux Kernel 2.6.7
  • Linux Kernel 2.6.8
  • MandrakeSoft Mandrake Linux 2007.1
  • MandrakeSoft Mandrake Linux 2007.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • Novell Linux Desktop 9
  • Novell Linux POS 9
  • Novell OpenSUSE 10.2
  • Novell OpenSUSE 10.3
  • Novell SLE SDK 10 SP1
  • Novell SUSE Linux Enterprise 10 SP1 DEBUGINFO
  • Novell SUSE Linux Enterprise Desktop 10 SP1
  • Novell SUSE Linux Enterprise Server 10 SP1
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • SuSE SuSE SLES 9
  • VMware ESX Server 3.0.1
  • VMware ESX Server 3.0.2
  • VMware ESX Server 3.5

Reported:

May 01, 2008

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